KINEMATICS

1. Figure shows two displacement – time graph for

particles A and B. If the velocities of particles A

and B are vA and vB respectively. Then which of

the following is correct?

(A) vA = vB (B) vA > vB (C) vA < vB (D) none of these

2. The displacement-time graph of a particle moving with a uniform velocity is

(A) point (B) straight line (C) parabola (D) none

3. In the above graph initial velocity is

(A) 4 m/s (B) zero

(C) 2 m/s (D) 4 m/s

4. The v – t graph is shown in the figure for particle, the

acceleration of particle is

(A) 22.5 m/s2 (B) 5 m/s2

(C) -5 m/s2 (D) -3 m/s2

5. Velocity time graph of a particle in motion is shown.

Then displacement and distance covered by the particle

in 2 seconds

(A) 2, 4 m (B) 0, 2 m

(C) 2, 2 m (D) 0, 0 m

6. Which of the following graph correctly represents velocity-time relationship for a particle released from rest to fall freely under gravity ?

(A) (B)

(C) (D)

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7. For the v-t graph, distance travelled by body in 5 sec. is

(A) 15 m (B) 40 m

(C) 80 m (D) 100 m

8. The graph represents displacement of two particles with

time. Ratio of velocity of A to velocity of B is (A) : 1 (B) 1 : 1

(C) 1 : 2 (D) 1 :

9. The motion of a particle is given by s = 1 + 10t - 5t2. The correct representation of the motion is

(A) (B) (C) (D) None of these

10. The figure shows v/t graph for a particle

moving along a straight line. The distance

covered by the particle in time interval

t = 2 s to t = 10 s equals __________.

11. With reference to displacement, time graph as shown which of the following

is ture

(A) Velocity is increasing (B) Velocity is decreasing

(C) Velocity is constant (D) Velocity is zero

12. Which of the following graph correctly represents velocity-time relationship for a particle released

from rest to fall freely under gravity ?

(A) (B) (C) (D)

13. The figure shows the velocity vs time graph for a particle

moving on a straight line. The distance travelled by the

particle in 10 sec. is

(A) 30 m (B) 40 m

(C) 60 m (D) 20 m

14. The displacement x of a particle in a straight line motion is given by x = 1 – t - t2. The correct

representation of the motion is

(A) (B) (C) (D)

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15. The velocity time graph for a particle moving along x-axis is shown

in the figure. The corresponding displacement time graph is

correctly shown by

(A) (B) (C) (D)

16. What will be distance travelled by a particle

from t = o to t = 4 sec.

(A) 15.5 m

(B) 13 m

(C) 16 m

(D) none of these

17. Which of the following graphs represents motion with uniform velocity

(A) (B)

(C) (D)

18. A body starts from rest moves along a straight line with constant acceleration. The variation of

speed v with distance s is given by graph

(A) (B)

(C) (D)

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19. With reference to displacement, time graph as shown which of the following

is true

(A) Velocity is increasing (B) Velocity is decreasing

(C) Velocity is constant (D) Velocity is zero

20. A tennis ball is dropped vertically onto a floor and bounces again. Taking velocity upwards as

positive, which of the following is best represented by v – t curve?

21. Two balls are dropped from the top of a high tower with a time interval of to seconds. Where to is

smaller than the time taken by the first ball to reach the elastic floor. The distance S between the

two balls, plotted against the time taken ‘t’ from the instant of dropping the second ball is best

represented by

(A)

(B)

(C)

(D)

22. A point travels along the straight line with velocity v. The variation of velocity v with time is shown in the graph. Assuming initial displacement to be zero, i.e. at t = 0, s = 0, draw approximate graph of displacement acceleration and the distance travelled against the time.

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KINEMATICSANSWERS

1. B.

2. B

3. C

4. C

5. B

6. A

7. A

8.

9. B

10. 71 m

11. A

12. A

13. A

14. B

15. D

16. B

17. B

18. B

19. A

20, B

21. C

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