Motion
In the distance-time graph of a cyclist, what is happening between B-C and C-D?
(1)
B-C: cyclist is coming back to where he started, C-D: cyclist is stationary.
(2)
B-C: cyclist is stationary, C-D: cyclist is accelerating.
(3)
cyclist is stationary, C-D- speed is increasing
(4)
B-C: cyclist is stationary, C-D: cyclist is coming back to where he started.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Motion A body starts to slide over a horizontal surface with an initial velocity of
0.2 m/s. Due to friction, its velocity decreases at the rate of 0.02 m/s2.
How much time will it take for the body to stop?
(1) 10 s
(2) 15s
(3) 1s
(4) 5s
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion For a constant acceleration, the nature of velocity-time graph is:
(1) Graph-B
(2) Graph-D
(3) Graph-C
(4) Graph-A
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Motion The velocity of a bullet is reduced from 200 m/s to 100 m/s while travelling through a wooden block of thickness 10 cm. The retardation, assuming it to be uniform, will be
(1) 10 × 104
m/s2
(2) 1.2 x 104
m/s2
(3) 13.5 × 104 m/s2
(4) 15 x 104 m/s2
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Motion The area enclosed by velocity-time graph and the time axis will be equal to
the magnitude of
(1) displacement
(2) speed
(3) acceleration
(4) distance
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
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.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Motion For the velocity time graph shown in figure,
the distance covered by the body in the last two seconds of its motion is what fraction of the total distance covered in all the seven seconds ?
(1) 1/2
(2) 1/4
(3) 1/3
(4) 2/3
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Motion Rest and motion are _____________ terms.
(1)
non-relative
(2) same
(3)
relative
(4)
all the above
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion The velocity-time graph AC of a moving particle is shown in the figure
below. The acceleration of the particle is:
(1) 5 m/s2
(2) 10 m/s2
(3) 20 m/s2
(4) 2.5 m/s2
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
