NEET Physics Kinematics MCQs Set D

Q.1 The initial velocity of a body moving along a straight line is 7m/s. It has a uniform acceleration of 4m/s². The distance covered by the body in the 5th second of its motion is 

(1) 25m

(2) 35m

(3) 50m

(4) 85m

Q.2 The displacement [s] of a bodyis directly proportional to the square of the time [t] than the acceleration of the body is 

(1) increases

(2) constant

(3) decreases

(4) zero

Q.3 A train covers 50 metre distance and stops when applied the breaks. If the velocity of train is just doubled and applied the same retarding force then the distance covered bythe train is

(1) 50m

(2) 100m

(3) 150m

(4) 200m

Q.4 The relation 3t = √3x + 6 describes the displacement of particle in one direction where x is in meters and t in seconds. The displacement,when velocity is zero, is : 

(1) 24m

(2) 12m

(3) 5m

(4) zero

Q.5 A body starts from rest and has an acceleration 20 cm/sec². What is the distance covered by the body in first 8 sec

(1) 160 cm

(2) 640 cm

(3) 1280 cm

(4) 1640 cm

Q.6 A particle moves towards east for 2 secwith velocity 15m/s and move towards north for 8 secwith velocity5m/s.Then average velocityof the particle is :

(1) 1m/s

(2) 5m/s

(3) 7m/s

(4) 10m/s

Q.7 A stone is thrown vertically upwards. When stone is at a height half of its maximum height, its speed is 10 m/s, then the maximum height attained by the stone is (g = 10 m/s2) :

(1) 8 m (2) 10 m (3) 15 m (4) 20 m

Q.9 The displacement of a particle is represented by the following equation : s = 3t³ + 7t² + 5t + 8 where s is inmetre and t in second. The acceleration of the particle at t = 1 is : 

(1) 14m/s² (2) 18m/s² (3) 32m/s² (4) zero

Q.10 A particle (1) is dropped from a height and another particle (2) is projected in horizontal direction with speed of 5 m/s from the same height. Then choose the correct statement :

(1) Particle (1) will reach the ground earlier than particle (2)

(2) Particle (2)will reach the ground earlier than particle (1)

(3)Both the particleswill reach the ground simultaneously

(4) both the particles will reach the groundwith the same speed

Q.31 A parachutist after bailing out falls 50 m without friction. When parachute opens, it decelerates at 2 m/s². He reaches the ground with a speed of 3 m/s. At what height, did he bail out :

(1) 293 m (2) 111 m (3) 91 m (4) 182 m

Q.32 A particle starting from the origin (0, 0)moves in a straight line in the (x, y) plane. Its coordinates at a later time are ( √3,3) . The path of the particle makes with the x-axis an angle of

(1) 30º (2) 45º (3) 60º (4) 0º

Q.33 A car moving with a speed of 50 km/h, can be stopped by brakes after at least 6m. If the same car is moving at a speed of 100 km/h, the minimum stopping distance is

(1) 12m (2) 18m (3) 24m (4) 6m

Q.35 Speeds of two identical cars are u are 4u at a specific instant. The ratio of the respective distances in which the two cars are stopped in the same time

(1) 1 : 1 (2) 1 : 4 (3) 1 : 8 (4) 1 : 16

Q.36 A bus is moving with a speed of 10 ms^–1 on a straight road. A scooterist wishes to overtake the bus in 100 s. If the bus is at a distance of 1 km from the scooterist, with what speed should the scooterist chase the bus ? 

(1) 20 ms^–1 (2) 40 ms^–1 (3) 25 ms^–1 (4) 10 ms^–1

Q.37 A particle moves a distance x in time t according to equation x = (t + 5)^–1. The acceleration of particle is proportional to : 

(1) (Velocity)^2/3 (2) (Velocity)^3/2 (3) (distance)² (4) (distance)^–2

Q.46 Two bodies are projected with the same velocity. If one is projected at an angle of 30° and the other at an angle of 60° to the horizontal, the ratio of the maximum heights reached is

(1) 3 : 1 (2) 1 : 3 (3) 1 : 2 (4) 2 : 1

Q.47 A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s², the range of the missile is : 

(1) 20 m (2) 40 m (3) 50 m (4) 60 m

Q.49 A boy standing at the top of a tower of 20 m height drops a stone. Assuming g = 10 ms^-2, the velocity with which it hits the ground is :

(1) 5.0 m/s (2) 10.0 m/s (3) 20.0 m/s (4) 40.0 m/s

Q.50 A particle moves in a circle of radius 5 cm with constant speed and time period 0.2 π s. The acceleration of the particle is : 

(1) 5 m/s² (2) 15 m/s² (3) 25 m/s² (4) 36 m/s²

ANSWERS