Welcome to your Kinematics - Linear and Non-Linear Motion, Projectiles(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. 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/s²5.0m/s²0.2m/s²0.4m/s²0.1m/s²2. If it takes an object 3s to fall freely to the ground from a certain height, what is the distance covered by the object?45m90m30m60m3. A particle is projected vertically upwards with a velocity of 20m/s.What maximum height does it attain? (g = 10m/s²)0.2m2m20m200m2000m4. What is the acceleration between two points on a v-t graph which has coordinates(10s, 15m/s) and (20s, 35m/s)3.50m/s²2.00m/s²1.75m/s²7.00m/s²1.00m/s²5. 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.3m/s²4m/s²80m/s²8m/s²16m/s²6. During the same interval, it is observed that a train travels the same distance as does a lorry. The two vehicles therefore have the sameaverage speedinstantaneous velocityaverage velocityinitial velocityuniform acceleration7. A ball is thrown vertically upwards and returns to the thrower after 6s.Calculate the maximum height attained.(Take g = 10m/s²)135m180m90m150m45m8. 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 stone will reach the ground firstthe feather will be blown away by the wind while the stone will drop steadilythe feather will reach the ground firstthe stone and feather will both reach the ground at the same time9. A body starts from rest and moves with uniform acceleration of 6m/s².What distance does it cover in the third second ?35m27m30m18m15m10. A body accelerates uniformly from rest at 2m/s². Calculate its velocity after travelling 9m.18m/s6m/s36m/s4.5m/s4.24m/s11. 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?57.6m/s35.33m/s40m/s7.20m/s12. 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 motion24km6km18km12km13. A motor vehicle is brought to rest from a speed of 15m/s in 20s.Calculate the retardation5.0m/s²0.75m/s²1.33m/s²7.5m/s²14. 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?0.5s3.0s6.0s2.0s1.5s15. 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 groundthe iron rod will first reach the groundboth objects will reach the ground at the same timeunder high temperature condition, the iron rod will first reach the ground16. 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 is39.2m/s78.4m/s80m/s27.7m/s784m/s17. 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.I, II & III onlyII, III & IV onlyI & II onlyI, II & V onlyIII, IV & V only18. 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.7m/s² and 36m/s5.4m/s² and 12m/s10m/s² and 46m/s4m/s² and 23m/s19. 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 oftwice the accelerationinitial velocityinitial displacementhalf the accelerationhalf the initial diaplacement20. A body falls from rest to the ground in 0.5 secs. Calculate the height from which it falls. (g = 10m/s²)1.25m5.0m0.125m0.5m1.0m21. When a ball rolls on a smooth level ground, the motion of its center israndomtranslationalrotationaloscillatory22. A body which is uniformly retarded comes to rest in 10s after traveling a distance of 20m.Calculate its initial velocity.0.5m/s200m/s4m/s20m/s2m/s23. A body travels from rest and accelerates uniformly to a speed of 120km/hr in 10 seconds. What is the distance covered?1000km6km60km600km1/6km24. 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 YX and Y are 95m from the point of throwX and Y will both be 500m from the point of throwY will be 95m ahead of X25. 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)10m/s40m/s2m/s20m/s8m/s26 out of 25Time is Up!
