Welcome to your Kinematics - Linear and Non-Linear Motion, Projectiles(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. A body falls freely under gravity (g = 9.8m/s²) from a height of 40m onto the top of a platform 0.8m above the ground. Its velocity on reaching the platform is 39.2m/s 784m/s 78.4m/s 27.7m/s 80m/s 2. Which of the following types of motion are oscillatory?I. a diving board when used by a diverII. the motion of the balance wheel of a wrist watchIII. the motion of turn-table of a record playerIV. the motion of the center of a coin as it rolls down on an inclined planeV. the motion of a needle of a d.c ammeter into which a low a.c current is passed. II, III & IV only III, IV & V only I, II & III only I & II only I, II & V only 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? 125m 15km 25km 250m 150m 4. A train has an initial velocity of 44m/s and an acceleration of -4m/s². Its velocity after 10 seconds is 2m/s 8m/s 16m/s 12m/s 4m/s 5. From the top of the Eiffel tower, a rubber ball and a piece of iron rod were dropped to the ground. Which of the following is true? (neglect air resistance) the rubber ball will first reach the ground the iron rod will first reach the ground both objects will reach the ground at the same time under high temperature condition, the iron rod will first reach the ground 6. When a ball rolls on a smooth level ground, the motion of its center is translational rotational random oscillatory 7. A body which moves from rest with a uniform acceleration travels 18m during the third second. What will be its velocity at the end of the eight second? 35.33m/s 40m/s 57.6m/s 7.20m/s 8. A bullet fired vertically upward from a gun held 2m above the ground reaches its maximum height in 4s.Calculate its initial velocity. (g = 10m/s²) 2m/s 10m/s 20m/s 8m/s 40m/s 9. 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.. 10m 20m 100m 200m 10. 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? 25m/s² 5m/s² 2m/s² 20m/s² 11. The distance traveled by a particle starting from rest is plotted against the square of the time elapsed from the commencement of motion.The resultant graph is linear.The slope/gradient of this graph is a measure of twice the acceleration initial displacement half the acceleration half the initial diaplacement initial velocity 12. A body starts from rest and moves with uniform acceleration of 6m/s².What distance does it cover in the third second ? 18m 15m 27m 30m 35m 13. What is the acceleration between two points on a v-t graph which has coordinates(10s, 15m/s) and (20s, 35m/s) 1.75m/s² 7.00m/s² 1.00m/s² 2.00m/s² 3.50m/s² 14. The motion of a moving skin of a talking drum can rightly be described as transitory oscillatory rotational translational random 15. A body falls from rest to the ground in 0.5s.Calculate the height from which it falls.(g = 10m/s²) 1.0m 5m 0.125m 1.25m 0.5m 16. 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. 80m/s² 8m/s² 16m/s² 4m/s² 3m/s² 17. A car traveling at 20m/s is brought to rest with a constant deceleration of 10m/s².Calculate the distance traveled. 400m 10m 20m 200m 18. 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? X will be 500m ahead of Y X and Y are 95m from the point of throw X and Y will both be 500m from the point of throw Y will be 95m ahead of X 19. 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 90m 60m 30m 20. A body accelerates uniformly from rest at 2m/s². Calculate its velocity after travelling 9m. 4.24m/s 36m/s 18m/s 6m/s 4.5m/s 21. The distance moved by a particle in the sixth and eight seconds of the motion are 45m and 53m respectively.Determine the acceleration and initial speed. 10m/s² and 46m/s 4m/s² and 23m/s 7m/s² and 36m/s 5.4m/s² and 12m/s 22. A stone and a feather are dropped from the same height above the earth surface. Ignoring air resistance, which of the following is correct? the feather will be blown away by the wind while the stone will drop steadily the feather will reach the ground first the stone will reach the ground first the stone and feather will both reach the ground at the same time 23. A moving object has a uniform acceleration. Its displacement increases at a constant rate velocity varies inversely with time speed is directly proportional to time velocity increases by equal amounts in equal time 24. A motor vehicle is brought to rest from a speed of 15m/s in 20s.Calculate the retardation 7.5m/s² 5.0m/s² 0.75m/s² 1.33m/s² 25. 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 1000m 905m 95m 100m 500m 1 out of 25 Time is Up! Time's up