Welcome to your Kinematics - Linear and Non-Linear Motion, Projectiles(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. A body starts from rest and moves with constant acceleration. Which of the following quantities varies/vary linearly with the square of the time.I. velocityII. displacementIII. momentum II & III only II only I & II only III only I only 2. A motor vehicle is brought to rest from a speed of 15m/s in 20s.Calculate the retardation 7.5m/s² 5.0m/s² 1.33m/s² 0.75m/s² 3. A car moving with a speed of 90km/hr was brought uniformly to rest by the application of the brakes in 10s.How far did the car travel after the brakes were applied? 250m 150m 25km 15km 125m 4. A body starts from rest and moves with uniform acceleration of 6m/s².What distance does it cover in the third second ? 18m 30m 15m 35m 27m 5. An apple fruit is dropped to the ground from the top a tree 45m tall. How long does it take to reach the ground? (Take g = 10m/s²) 7.5s 4.5s 9s 6s 3s 6. Which of the following statements is true of a body which is moving in a straight line with uniform acceleration? The velocity of the body must always be zero when the body stops accelerating will increase with time in the direction of the acceleration is also uniform is the product of the distance travelled and time is equal to the quotient of distance travelled and time 7. A mango fruit drops from a branch 10m above the ground. Just before hitting the ground, its velocity is 10√2m/s 200m/s 10m/s 100m/s 5√2m/s 8. The driver in a car of which the total mass is 800kg and which is traveling at 20m/s, suddenly observes a stationary cat in his path 50m ahead.If the car brakes exert a force of 2KN, what will most likely happen? the cat will stop 5m beyond the cat the car will be able to stop immediately the driver notices the cat the driver will quickly reverse the car the car will stop 20m in front of the cat the car will stop 30m after hitting the cat 9. When a ball rolls on a smooth level ground, the motion of its center is translational random rotational oscillatory 10. A body starts from rest and moves in a straight path with uniform acceleration of 8m/s² for 5 seconds. It then decelerates uniformly to rest in the next 10 seconds. Calculate the magnitude of its acceleration. 4m/s² 8m/s² 3m/s² 80m/s² 16m/s² 11. Two balls X & Y weighing 5g and 50kg respectively were thrown up vertically at the same time with a velocity of 100m/s. How will their positions be one second later? Y will be 95m ahead of X X and Y are 95m from the point of throw X and Y will both be 500m from the point of throw X will be 500m ahead of Y 12. If it takes an object 3s to fall freely to the ground from a certain height, what is the distance covered by the object? 45m 60m 90m 30m 13. A car starts from rest and moves with a uniform acceleration of 30m/s² for 20s. Calculate the distance covered at the end of the motion 12km 18km 6km 24km 14. What is the acceleration between two points on a v-t graph which has coordinates(10s, 15m/s) and (20s, 35m/s) 2.00m/s² 3.50m/s² 1.00m/s² 1.75m/s² 7.00m/s² 15. A boy moving with a velocity of 4m/s is brought to rest by a constant force after traveling 20m.Calculate the retardation. 2.5m/s² 0.2m/s² 0.4m/s² 5.0m/s² 0.1m/s² 16. Two particles A and B starting from rest cover the same distance. The acceleration of A is twice that of B, the ratio of the time taken by A to that taken by B is 2 √2 4 1/√2 1/2 17. If a car starts from rest and moves with a uniform acceleration of 10m/s² for 10s. The distance it covers in the last one second of its motion is 905m 100m 1000m 500m 95m 18. A car moves with an initial velocity of 25m/s and reaches a velocity of 45m/s in 10s. What is the acceleration of the car? 5m/s² 25m/s² 2m/s² 20m/s² 19. An object moves with uniform speed round a circle. Its acceleration has constant magnitude and varying direction varying magnitude and constant direction varying magnitude and varying direction constant magnitude and constant direction 20. A train with an initial velocity of 20m/s is subjected to a uniform deceleration of 2m/s². The time required to bring the train to a complete halt is 20s 5s 10s 40s 21. A body falls from rest to the ground in 0.5 secs. Calculate the height from which it falls. (g = 10m/s²) 1.0m 0.125m 0.5m 1.25m 5.0m 22. A particle is projected vertically upwards with a velocity of 20m/s.What maximum height does it attain? (g = 10m/s²) 200m 2000m 20m 0.2m 2m 23. A stone was dropped from a height, h and attained a velocity of 20m/s just before hitting the ground. If g = 10m/s², calculate the height, h through which it fell.. 20m 10m 100m 200m 24. A car traveling at 20m/s is brought to rest with a constant deceleration of 10m/s².Calculate the distance traveled. 400m 200m 20m 10m 25. A moving object has a uniform acceleration. Its velocity varies inversely with time velocity increases by equal amounts in equal time displacement increases at a constant rate speed is directly proportional to time 1 out of 25 Time is Up! Time's up