Welcome to your Kinematics - Linear and Non-Linear Motion, Projectiles(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. A mango fruit drops from a branch 10m above the ground. Just before hitting the ground, its velocity is 5√2m/s 10√2m/s 10m/s 100m/s 200m/s2. What is the acceleration between two points on a v-t graph which has coordinates(10s, 15m/s) and (20s, 35m/s) 3.50m/s² 1.00m/s² 2.00m/s² 1.75m/s² 7.00m/s²3. 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 is also uniform is equal to the quotient of distance travelled and time will increase with time in the direction of the acceleration is the product of the distance travelled and time must always be zero when the body stops accelerating4. 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 2m/s² 20m/s² 5m/s²5. 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? 150m 125m 25km 15km 250m6. A body which is uniformly retarded comes to rest in 10s after traveling a distance of 20m.Calculate its initial velocity. 4m/s 2m/s 0.5m/s 200m/s 20m/s7. 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) 3s 4.5s 7.5s 9s 6s8. 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 40s 5s 20s 10s9. A ball is dropped from a height of 20m and rebounds with a velocity which is 3/4 of the velocity with which it hits the ground. What is the time interval between the first and the second bounces? 6.0s 0.5s 1.5s 3.0s 2.0s10. A boy moving with a velocity of 4m/s is brought to rest by a constant force after traveling 20m.Calculate the retardation. 5.0m/s² 0.4m/s² 0.1m/s² 2.5m/s² 0.2m/s²11. 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 & V only I & II only12. A body accelerates uniformly from rest at 2m/s². Calculate its velocity after travelling 9m. 6m/s 4.5m/s 36m/s 4.24m/s 18m/s13. 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 and Y will both be 500m from the point of throw X and Y are 95m from the point of throw X will be 500m ahead of Y Y will be 95m ahead of X14. A particle is projected vertically upwards with a velocity of 20m/s.What maximum height does it attain? (g = 10m/s²) 200m 2m 0.2m 20m 2000m15. 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) under high temperature condition, the iron rod will first reach the ground 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 time16. A body falls from rest to the ground in 0.5s.Calculate the height from which it falls.(g = 10m/s²) 1.0m 5m 1.25m 0.125m 0.5m17. 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 24km 6km18. If it takes an object 3s to fall freely to the ground from a certain height, what is the distance covered by the object? 60m 30m 90m 45m19. If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is said to be circular rotational oscillatory rectilinear20. During the same interval, it is observed that a train travels the same distance as does a lorry. The two vehicles therefore have the same average velocity instantaneous velocity uniform acceleration average speed initial velocity21. 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 III only I only II & III only I & II only II only22. 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.. 100m 20m 10m 200m23. A ball is thrown vertically upwards and returns to the thrower after 6s.Calculate the maximum height attained.(Take g = 10m/s²) 90m 180m 135m 45m 150m24. 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 reach the ground first the stone will reach the ground first the stone and feather will both reach the ground at the same time the feather will be blown away by the wind while the stone will drop steadily25. 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 half the initial diaplacement initial displacement half the acceleration initial velocity26 out of 25Time is Up!
