CBSE - Motion

3 Motion The equations of motion can be derived by using:
 (1) Distance– time graph
 (2 Velocity – time graph for non-uniform acceleration
 (3) Displacement time graph
 (4) Velocity – time graph for uniform acceleration

4 Motion The distance travelled by the body between 0 to 20 seconds?

(1) 260m
(2) 160m
(3) 300m
(4) 60m

5 Motion A body starts from rest at time t = 0, the acceleration time graph is shown in figure. The maximum velocity attained by the body will be :

(1) 110 m/s
(2) 55 m/s
(3) 650 m/s
(4) 550 m/s

6 Motion What is the speed of the object in the 10 second interv al from 40-50 seconds?

(1) 2 m/s
(2) 1 m/s
(3) 0.25 m/s
(4) 0.5 m/s

7 Motion If you whirl a stone on the end of the string and the string suddenly breaks, the stone will:
  (1) Fly off along the tangent to its circular path.
  (2) Fly directly towards you.
 (3) Spiral away from your hand.
 (4) Spiral in towards your hand.

8 Motion A thin uniform metal rod of mass ' m' and length ‘ l’ standing vertically is now allowed to fall due to its own weight.

The velocity with which its mid-point will strike ground will be :

9 Motion The following position-time graph of an object shows that the body

(1) No such inference can be made from the graph.
(2) Has non-uniform motion.
(3) Has uniform motion.
(4) Is at rest.

10 Motion A body is moving along a straight line at 20 ms^–1 undergoes an acceleration of 4 ms After 2 s, its speed will be-

(1)  8 ms^–1
(2)  12 ms^–1
(3)  16 ms^–1
(4)  28 ms^–1