1. The displacement - time graph of a body is shown in the figure below.

The part of the graph that represents the body at rest is:

2.   A body is first displacement by 5 m and then by 12 m in different directions. The minimum displacement it can have is _____ m.

3. A body starting from rest and travelling along a straight line with an acceleration of 6 m s^-2, then the distance traveled by it in the 3rd second is _________m.

4. A body starts from rest and moves along a straight line path with uniform acceleration. The ratio of velocities at t=1s and t = 2 s is _________.

5. A body undergoes a displacement of 3 m in the 1 st second, 4m in the 2 nd  second, 5m in the 3rd second and so on. The body is moving with a:

6. 45 km h^-1 = ___________ m s^-1.

7. The speedometer of a vehicle indicates its _____________.

8.  When a body moves with uniform velocity then

9. A body is moving along the curve ABC as shown in the figure and the initial and final positions are A and C, respectively. Displacement is the line joining

10. A boy throws a ball vertically upwards and catches it after 2 seconds. Which of the following is true regarding the motion of the ball?

(i) The displacement is zero. (ii) Magnitude of acceleration is constant.

11. If a sports car at rest accelerates uniformly to a speed of 144 km h^-¹ in 5 s, it covers a distance of ____________ m.

12. Assertion (A): A body may have velocity and displacement in the opposite directions.

Reason (R): Velocity is distance travelled by the body in a unit time.

13. An object moves the first half of the total distance with a speed of 2 m s^-1. If the average speed of the body is 3 m s^-¹, the speed of the body when it travelled the remaining distance is __________  m s^-1.

14. A person starts from a point P and travels along a path PQRP as shown in the figure. Then, the speed of the person is__________ ms^-1.

15. A bus travels one-third of the distance with a speed of 12 km h^¯¹ and the remaining distance with a speed of 20 km h^-1. The average speed of the bus is nearly__________ km h^-¹.