Vertical and horizontal circular motion class 9. The bob has a speed of 3 m / s.

It is an example of non-uniform circular motion. Because horizontal and vertical information is used separately, it is a wise idea to organized the given information in two columns - one column for horizontal information and one column for vertical information. Circular Motion Exercise 2 Worked Solutions. This article includes complete Circular Motion Notes for Class 11th. 0 m A motor rotates the platform so that the acrobats move at a constant speed in a horizontal circle, on opposite sides of the pole. 916 m/sec [ this is the velocity with which the second ball was thrown ] Analysis of Q1- numerical problems on Vertical motion I believe after solving or while solving a numerical problem using mathematical formulas, every student should spend a while to visualize the situation. 0(0. If the length of the string is L, then from the figure. The acrobats, each of mass 85 kg, are suspended from ropes attached to opposite edges of a circular platform that is at the top of a vertical pole. The resultant of two forces P and Q is R. This means that the force of gravity will not contribute to the centripetal force. The height of the plane of motion above the vertex is h and the semivertical angle of the cone is . Since the vertical acceleration is constant, we can solve for a vertical variable with one of the four kinematic formulas which are shown below. Now we start to consider particles describing vertical circles as in the diagram below: Here there will be a change in potential energy due to the height, which leads to an inverse change in kinetic energy. This type of motion occurs across a vertical and circular path. T 0 sin θ: horizontal component; The vertical component (T 0 cos θ) balances the weight ‘mg’. Motion in a horizontal circle↪ Suppose an object of mass m tied at one end of a string is whirling in a horizontal circle of radius r and center O. These two can be solved to give an equation for the angle θ for any particular velocity v. It also appli 2 days ago · The motion in a vertical circle is considered nonuniform as the influence is observed the most at the lowest and the least at the highest point of the path. 📲PW App Link - Vertical circular motion is a motion that happens when the body is traveling on a vertical, circular surface. Here, r is the radius of the circular motion. Conclusion: The following things can be concluded now: If the distance-time graph is a straight line then the motion is uniform. v y = v 0 y + a y t. If the velocity of the body is such that √(2 g r) < v < √(5 g r), then the body leaves the circular path and acts as a projectile. (b) mercury. Vertical Circular Motion. Here, to keep a projectile moving horizontally, horizontal forces are not necessary. where, τ is the time period. Define concepts involving projectile and projectile motion 2. The force that keeps the body moving in circular motion is _______. Newton's second law tells us exactly how much an object will accelerate for a given net force. 5D. Example: 7. Know how the circular motion in vertical plane different from horizontal plane? This article provides Jul 10, 2019 · A particle is describing circular motion in a horizontal plane in contact with the smooth inside surface of a fixed right circular cone with its axis vertical and vertex down. But during the circular motion in the vertical plane, the role of gravitation is omnipresent. Define angular velocity. Find the time period of the weight and the speed of the weight in the circular path. In the horizontal plane. 81) v=23m/s This is about 83 km/h, which is much more reasonable than the speed we used in Example 1. r = L sinθ. Washing Machine Drum: During the spin cycle, the drum of a washing machine spins in a circular path. The direction of a centripetal force is toward the center of rotation, the same as for centripetal acceleration. (ii) the tension T, in the string. a centripetal acceleration ac= ω2r = v2/r directed inward toward the centre of the circle. When the stone is released, it moves in a straight line tangential to the circular path. 6. 2 ft/s2 or 9. Vertical circular motion is a circular motion Sep 28, 2014 · The tension is constant and there is no "top" or "bottom" to the problem. The acceleration, of the particle is towards the centre and its magnitude is, radius of the circle. This is consistent with the initial horizontal velocity of 20 m/s. ↪ Since the weight mg of the object acts at right angles to the tension TS in the string, the In a horizontal circular motion, the body or the object is at constant speed i. Name the physical quantity which remains same in an uniform circular motion. A block of 200 g mass moves with a uniform speed in a horizontal circular groove, with vertical side walls of radius 20 cm. 28 × 10 N (4) 9. For more such interesting concepts, visit byjus. By manipulating angle, initial speed, mass, and air resistance, concepts of projectile motion come to light in a fun and game-like environment. For this, tension (T 0) in the string is resolved into a. The principle makes some sense; the more that a force is directed upwards (the angle with the horizontal Apr 25, 2012 · PG Concept Video | Circular Motion | Vertical Circular Motion of a Pendulum Bob by Ashish AroraStudents can watch all concept videos of class 11 Circular Mot Jun 10, 2023 · Dipen. No, since acceleration is always towards the centre. A ball that is thrown horizontally from the top of a cliff is also a projectile motion. Unlike horizontal circular motion, in vertical circular motion the speed, as well as the direction of the object, is constantly changing. a = v2 / (Tv/2 π) = v / (T/2 π) = 50 / [ 40 / 6. 2. b) Centrifugal force. 2 days ago · In a vertical circular motion, the ratio of the kinetic energy of a particle at the highest point to that lowest point isA. 859 × 10–4N. The resultant acceleration is the vector Jun 30, 2021 · If the velocity of the body is such that v < √(2 g r), then the body oscillates about the lowest point of the vertical circle. 3 days ago · Example 1: A cord of length 5m is fixed at one end and to its other end weight is attached, which describes a horizontal circle of radius 1. Let the particle have speed u at the lowest point L, v at any point P and vH at the highest point H. - If the radius of the circle is increased by a factor of 4, circular speed at the top will be. If the kinetic energy of the system is K initially, its final kinetic energy will be Sep 21, 2020 · This videos is about Mass tied to a string (Vertical Circular Motion) from Rotational Dynamics class 12 new syllabus of Maharashtra state board (HSC Board). ↪ The object is moving with a uniform linear velocity v and angular velocity ω. ‍. 8 m/s2 towards the Earth. Today we are going to study about Motion In A Vertical Circle with Sarim Khan. Question 5. Since horizontal forces are absent, the projectile continues to be in motion at a constant horizontal velocity. This video examines the equations for speed, acceleration and centripetal force. Δs) • Angle in “radians” ≡ (arc length / (radius r) Note that v = r (2π/T) = r ω [m/s], and therefore v is proportional to the radius of the circle. A man sitting at the centre having two blocks in his hands stretches out his hands so that the moment of inertia of the system doubles. 51ms-1. F In this video, an object is spun in a Mar 26, 2020 · I think I want to compare (both experimentally and mathematically) the constant tension of horizontal to the varying tension of the vertical circular motion. 1 day ago · The forces acting at any point in the path of the motion can be studied with the help of a free body diagram (FBD). (c) sometimes water and sometimes mercury. Free-body diagram for a ball swinging in a horizontal circular motion, StudySmarter Originals. In this instance, the acceleration is known. For a mass moving in a vertical circle of radius r = m, if we presume that the string stays taut, then the minimum speed for the mass at the top of the circle is (for g = 9. , , v2, . A mass m rotates in a vertical circle of radius R and has a circular speed v c at the top . Tires on a Moving Car: As a car moves, its tires rotate in a circular motion. Code: S9FE-IVa-34 After going through this module, you are expected to: 1. “Uniform” means constant speed v = 2πr / T, where the period T is the time to go around the circle once. In this condition, centripetal (radial) acceleration (a R) acts towards centre and a tangential acceleration (a T) acts towards tangent. This is the condition for "weightlessness" in any curved motion in a vertical plane. Document Description: Uniform Circular Motion for Class 9 2024 is part of Science Class 9 preparation. The forces on the object are thus: →Fg. 7:28. Apr 18, 2024 · Circular Motion Question 2: A car travelling at a constant speed of 36 km/hr in a circular path of radius 200 m, then normal acceleration and tangential acceleration in m/s 2 is given by. 79/5 Rating. In this article we are going to explain the statement “Uniform Circular motion can be interpreted as a SHM. The slope of the straight-line graph is the same irrespective of the interval which is chosen. α The period of revolution of the particle: (A) increases as h increases May 12, 2016 · Did you know that centrifugal force isn't really a thing? I mean, it's a thing, it's just not real. eSaral Provides you free Detailed Notes with proper images and explanations. A horizontal circular plate is rotating about a ‘ vertical axis passing through its centre with anangular velocity co 0. The bob has a speed of 3 m / s. The upper end of the string of a simple pendulum is fixed to a vertical z-axis, and set in motion such that the bob moves along a horizontal circular path of radius 2 m, parallel to the xy plane, 5 m above the origin. Three instances of such a motion are simulated - the motion of a ball on a string, the motion of a car on a banked turn (without the need for friction May 22, 2021 · To download lecture notes,practice sheet & practice sheet video solution visit Umeed Batch in Batch Section of PW App(http://bit. 5 m/s 2, a t = 0. 86. " Mind bl Therefore, the equation of the line parallel to x-axis and passing through (4, 2), i. One end of the pendulum string is at rest at O with respect to the cart. a n = 0. If the distance-time graph of a body is given, its speed can be calculated using the slope of the graph. Acceleration in the horizontal projectile motion and vertical projectile motion of a particle: When a particle is projected in the air with some speed, the only force acting on it during its time in the air is the acceleration due to gravity Nov 18, 2020 · Uniform Circular Motion is Made Easy! Centripetal Force and Centripetal Acceleration concepts are also explained in the video. It will leave circular motion between horizontal and highest point. If the radius of the motion is 0. The path is a circle (radius r, circumference 2πr). May 24, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Aug 19, 2021 · So, the component T cos θ balances the weight W of m. Figure 6. Along the y-axis: uniform acceleration, responsible for the vertical (downwards) motion of the particle. 0314 N (2) 9. Here is a concept idea of the experiment: It is the same as your generic high school circular motion experiment except for this time I hand spin the mass vertically instead of horizontally. Motion of body in circular path. horizontal line equation is y = 2. This set of Class 11 Physics Chapter 4 Multiple Choice Questions & Answers (MCQs) focuses on “Uniform Circular Motion”. The Horizontal and Vertical Motions of a Projectile. Area of speed-time graph gives. 1) Its speed is constant. To download Lecture Notes, Practice Sheet & Practice Sheet Video Solution, Visit MANZIL Batch in Batch Section of PhysicsWallah App/Website. 3> Total time of flight – formula derivation. to/32gdK0lsee this alsohttps://youtu. Students studying in class 9 can access these solutions for free in PDF format. A driver of a car travelling at 52km/hr applies brakes and accelerates uniformly in the opposite direction the car stops in 5 seconds. Kinetic energy and speed. 2. mv 2 /R = TSin (θ). Q. ”. Example 2: An object moving in a circular motion has a centripetal acceleration of 20 m/s2. 2m. a n = 0, a t = 6. Physics CBSE Class 9 Course 70% This document is useful for Class 9 , Grade 10 , Grade 9. This way. And at a point where there is maximum tension, there will be high chances of the breakage of the string. 15. e. 5B. Putting these in equation (3), we get. Note: This batch . 7. Although they certainly do not move fast, ferris wheels are a great example of a vertical circle. The velocity of anybody undergoing motion in a vertical circle is given by v = u2 − 2gh− −−−−−−√. Length l of the conical pendulum= 5. Describe the horizontal and vertical motions of a projectile. 2C. 3. 15. For any velocity above this minimum, we can use conservation of energy to Uniform Circular Motion. We will begin by looking at two special positions The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9. Circular Motion in a Horizontal Plane. As the angle that a force makes with the horizontal increases, the component of force in the horizontal direction (F x) decreases. These are examples of projectile motion. For example, a car driving down a straight road. Furthermore, since there is no horizontal acceleration, the horizontal distance traveled by the projectile each second is a constant value - the projectile travels a horizontal distance of 20 meters each second. ? This video discusses circular motion involving tension forces in horizontal and vertical planes. We know objects can only accelerate if there are forces on the object. PhET: Projectile Motion. Tie a piece of thread to a small stone at one of its ends. Nov 25, 2021 · Page 5 : circular Motion | DPP-3, , Topics, , Qi, , Q2, , Q3, , Q4, , Covered : Circular Motion is Vertical Plane, , shown in the figure. Uniform circular motion concept is made understandable in a simple way. 9. In the vertical plane. ⌚Timestamp0:00 The Basics03:08 Tension with Angle10:06 Verti Class 11 Physics MCQ – Uniform Circular Motion. This simulation is accompanied by an activity sheet with directions and exploration questions. The string breaks when the bob is vertically above the x-axis, the it lands on the xy plane at a Sep 21, 2017 · In the last post on Centripetal Force, we have shown that while rotating in a circle in the Horizontal plane, the gravitational force has no role (no work done) on the rotating object. The Vertical circular motion also has a concept of critical The solution of this problem begins by equating the known or given values with the symbols of the kinematic equations - x, y, v ix, v iy, a x, a y, and t. 4> Maximum height of a projectile Nov 21, 2023 · Most people are familiar with uniform circular motion, where an object moves in a circle at a constant speed. Circular Motion: Objects moving in a circular path. In fact, physicists call it a "fictitious force. Sep 20, 2021 · where l is length of the pendulum and h is the vertical distance of the horizontal circle from the fixed point O. NCERT Solutions for Class 9 explains motion in terms of distance moved or displacement. Observe that the force is the same magnitude in each diagram; only the angle with the horizontal is changing. Uniform and non-uniform motions of objects are explained through the graph and examples. 5 m/s 2. For every object, the gravitational force causes a constant acceleration of 32. Solution: Nov 30, 2017 · We will cover here Projectile MotionDerivation to derive a couple of equations or formulas like: 1> derivation of the projectile path equation (or trajectory equation derivation for a projectile) 2> Derivation of the formula for time to reach the maximum height. 5 m, calculate the frequency of the motion. Feb 15, 2024 · JEE Main 2024 Session 1 Result: Click to Check. In a vertical circular motion controlled by 4 days ago · A body thrown with an initial velocity at an angle with the horizontal is a projectile motion. 859 × 10 N –3(3) 6. The platform has a diameter of 2. 6 days ago · Circular Motion Examples for Class 9. 9 The frictional force supplies the centripetal force and is numerically equal to it. Concepts covered in Class 11, Class 12 Concepts of Physics Vol. Consider a ball of mass Jun 10, 2024 · Here are some examples of different types of motion: Linear Motion: Objects moving in a straight line. If the block takes 40 s to complete one round, the normal force by the side walls of the groove is : –2(1) 0. Both acceleration acts perpendicular to each other. The direction of the velocity and the force are displayed as vector arrows. HOPE IT HELPS. and v = rω = r (2π τ) = 2πr τ = 2πL sin θ τ. v=√90. (i) the weight of the particle, mg, acting vertically downwards. 4) Radial (centripetal) acceleration = ω2r. Ans: Hint:In this problem, we use the concept of centripetal force and work-energy theorem. 8 m s 2 . 1 chapter 7 Circular Motion are Aristotle’s Fallacy, The Law of Inertia, Newton's First Law of Motion, Newton’s Second Law of Motion, Newton's Third Law of Motion, Conservation of Momentum, Equilibrium of a Particle, Common Forces in Mechanics, Circular Motion and Its Horizontal Circle Simulation. Centripetal force is perpendicular to velocity and causes uniform circular motion. This the CBSE Exam, class 12. Rotating a stone. Question 10. a constant linear speed v = rω tangent to the circle and. 0. Solution: This is clearly an example of a conical pendulum. . The Horizontal Circle Simulation provides the learner with an interactive, variable-rich environment for exploring the motion of an object in a horizontal circle. In case of non-uniform circular motion, there is some tangential acceleration due to which the speed of the particle increases or decreases. This results in a parabolic trajectory. After going through this module, you are expected to: 1. 28] a = 7. The module focuses on achieving this learning competency: Describe the horizontal and vertical motions of a projectile. 3. Thus, the horizontal displacement is 20 m at 1 second, 40 meters at Jun 17, 2023 · Question 4. Gravity is constantly either speeding up the object as it falls, or slowing the object down as it rises. In the case we are discussing here, velocity of the body is different at different points. Complete answer: When an object is moving in a vertical circular motion as shown in the above diagram. Yo-Yo: When you spin a yo-yo, it moves up and down in a circular motion. ly/3ru9Agh). Δ y = ( v y + v 0 y 2) t. A projectile’s horizontal motion is the result of the tendency of any object to persist the motion at a constant velocity. Feb 10, 2020 · An educational video upon uniform horizontal circular motion. When a disc containing mercury and water is rotated rapidly about a vertical axis, then the outermost place in the disc will be taken by: (a) water. NCERT Solutions for Class 9 Science Class 9 Science Chapter 7 Motion provides detailed answers for all in-text and exercise Questions. 3 A straight length of tape unwinds from a ys roll rotating about. Vertical circular motion (VCM) is a special type of circular motion in which the body travels in a vertical plane. In a vertical circular motion, the body is the main entity to shift Feb 13, 2021 · Hello everyone. com and download BYJU’S – The Learning App to Definition of Vertical Circular Motion. Since the only centripetal force comes from the tension in the string, our force equation is: F n e t = m a c T = m v 2 r. These solutions contain an in-depth explanation of each topic involved in the chapter. The total energy of the body is constant. 2) Velocity is changing at every instant. Define concepts involving projectile and projectile motion. A particle can travel in a circle and speed up or slow down, showing an acceleration in the direction of the motion. a) Centripetal force. Using a g value of 9. Dec 4, 2021 · In uniform circular motion tangential acceleration (aT) is zero. Now release the stone and observe in which direction does the stone travel. Aug 31, 2020 · Non-uniform Horizontal Circular Motion In non-uniform horizontal circular motion, the magnitude of the velocity of the body changes with time. 1. Circular Motion Examples. Circular motion does not have to be at a constant speed. csCafe. This implies that for a given mass and velocity, a large centripetal force causes a small radius of curvature—that is, a tight curve. When the car is taking a turn on the road, a total of three forces act simultaneously on the car: The weight of the car, mg. 5) v=ωr. A observer standing in a cart which has acceleration g on horizontal road is observing vertical circular motion of a pendulum. The body of mass m, of angular amplitude 0 while the other, the mass 4m and the horizontal surface, , Two bodies of mass m and 4m are attached with string as, hanging from a string of length / is executing Simple Harmonic Motion And Uniform Circular Motion. To complete an entire vertical circular motion, certain criteria must be met, and kept consistent. Answer. If the string is under tension, the force of tension will always be towards the center of the circle. We hope the given NCERT MCQ Questions for Class 9 Science Chapter 8 Motion with Answers Pdf free download will help you. Dr Manju Sen. As the motion of the bob is a horizontal circular motion, the resultant force must be horizontal and directed towards the centre C of the circular motion. Circular motion is a motion in which the distance of a particle (radius) moving in a plane from a fixed point (centre) remains constant. Jul 8, 2024 · In physics, the projectile motion is broken into two components: horizontal and vertical. These notes will also help you in preparing Exams like IIT JEE, NEET and other Entrance Exams. At the point P, the following forces act on the particle. 4. In this simulation, students can fire various objects out of a cannon, including a golf ball, football, pumpkin, human being, a piano, and a car. Here, the object carries forward the same speed, velocity, distance, and acceleration. Show that the centripetal force on a particle undergoing uniform circular motion is -mω 2 \(\vec{r}\). 8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion. Answer: Angular velocity of a particle is the rate of change of angular displacement. 10th June 2023. Note: This batch This simulation allows the user to alter the radius and speed of an object moving in uniform circular motion to see the effect upon acceleration and force. If we tie a stone to the end of a string and move it with a constant angular speed in a horizontal plane about fixed point, the stone would perform a uniform circular motion in the Mar 28, 2024 · One way to have a force that is directed towards the center of the circle is to attach a string between the center of the circle and the object, as shown in Figure 6. Vertical Circles and Non-Uniform Circular Motion. If the stone make 15 revolutions in 25s. Equations for VCM. 3) There is no tangential acceleration. Jul 26, 2019 · v=105. ) (a. It can be classified into two types: uniform with constant speed and constant angular rotation rate and non-uniform with changing rotation rate. 8 m/s/s, down, The vertical velocity of a projectile changes by 9. Jul 9, 2021 · Down: 1. For example, the Moon orbiting the Earth or a spinning top. The change in linear momentum of the body is zero. 8 m/s 2) m/s. Jan 12, 2023 · In this video, an object is spun in a vertical circle and it is analyzed at the top and bottom of the loop to see how the direction of the forces differ. https://amzn. a n = 0, a t = 0. T 0 cos θ: vertical component b. Step 2: Find the minimum speed of the object (the speed at the top of the circle) using the formula vmin=√rg v min = r g . That is the only force in the horizontal plane, so that is equal to the mass times Jul 5, 2024 · A body, tied to a string, performs circular motion in a vertical plane such that the tension in the string is zero at the highest point. When both the formulas are combined, we get. Jul 6, 2020 · In this video we will discus about difference between horizontal and vertical circular motion Nonuniform Circular Motion. in the video, he writes down Newton's 2nd Law in the x-direction, which is the direction that is toward the center since the circle is horizontal. ) 6. (d) none of these. In this portion of Lesson 2 you will In this case, the force of gravity can be determined from the equation Fgrav = m • g. In this lesson on Vertical Circular Motion, which is part of Unit 3 Area of Study 3 for VCE Physics, you will learn how to: investigate and apply theoretically Newton’s second law to circular motion in a vertical plane (forces at the highest and lowest positions only). 60)(9. In uniform circular motion, the particle executing circular motion has a constant speed and the circle is at a fixed radius. The circular motion is a 2D motion in a plane. 2) Projectiles have two velocity components - a horizontal component that remains constant, and a vertical component that changes due to gravity. Rotational Motion: Objects rotating around an axis. ) (b. Some of the examples are roller coasters, cars on hilly roads, etc. The mass isn't accelerating so m*g = Tcos (θ) . The component of any net force that causes circular motion is called a centripetal force. SI unit of distance and displacement. Horizontal circular motion is a part of the uniform circular motion. To be clear, ‍ is the acceleration of the object, ‍ is the net force on the object, and ‍ is the mass of the object. The motion of a car on a level road: Let us assume a car is moving on a level road, with mass ‘m’ and ‘g’ as the acceleration due to gravity acting upon it. Choose the possible position of minimum speed for the pendulum with respect to car during complete vertical circular motion from the figure given TRµ3. - May 28, 2023 · Step 1: Identify the radius of the vertical circular motion, r in meters, and the approximation of the centripetal acceleration due to gravity, g in meters per second squared. a fixed axis with constant angular. vertical line is equation x = 4. What is the angular speed of the body at the. When the net force is equal to the centripetal force, and its magnitude is constant, uniform circular motion results. highest position; lowest position ? Answer: \(\sqrt{g / r}\) \(\sqrt{5 g / r}\) in the usual notation. Plot the speed versus time graph for both time graphs for two cars. 1. Projectile Motion; and 2. Similarly, the equation of the line parallel to the y-axis and passing through (4, 2), i. 8 m/s 2, the force of gravity acting upon the 864-kg car is approximately 8467 N. 25. 9K Views. Here, v is the speed of the particle and r the, r, , The direction of the resultant force F is therefore, towards the centre and its magnitude is F =, (as v = rw ), , mv 2 May 24, 2021 · To download lecture notes,practice sheet & practice sheet video solution visit Umeed Batch in Batch Section of PW App(http://bit. the rate at which the object moves in this type of motion is constant and does not fluctuate. Question 56. So we see that the centripetal force in this case is the horizontal component of the tension, Tx = Tsin (30). For example, the movement of the clock's hand and the horizontal spinning of a Two-dimensional projectiles experience a constant downward acceleration due to gravity a y = − 9. Feb 13, 2017 · 1) Projectile motion describes the trajectory of objects thrown or projected into the air. Vertical Circle Problems A vertical circle is any circle that is perpendicular to the ground. In most cases of projectile motion, the vertical component is due to the action of gravity. A stone tied to the end of a string 75 cm long is whirled in a horizontal circle with a constant speed. The notes and questions for Uniform Circular Motion have been prepared according to the Class 9 exam syllabus. Step 5 of the suggested method would be used if the acceleration were not given. Choose the possible position of minimum speed for the pendulum with respect to car during complete vertical circular motion from the figure given Jan 21, 2019 · Here's the video on VERTICAL CIRCULAR MOTION which contains Derivation & Numericals on Vertical Circular Motion. Raghav Raj sah. Two particles are moving with common speed v such that they are always at a constant distance ' d ' apart and their velocities are always equal and opposite. the plane of circular motion. Rotate the stone in a circular path with constant speed by holding the thread at the other end. Another driver going at 34km/hr in another car applies brakes slowly and stops in 10 seconds. Horizontal motion is defined as a projectile 1. 0m. velocity, the radius of the roll decreasing at a steady rate. You can write two equations. In this projectile, the body moves along the vertical plane, and the path followed by the body is called a trajectory. It is the motion of projectiles that are subject only to gravity. Ans. Not Attempted. bb po tk cn pl kb nq xu uz wk