Motion This is a velocity-time graph when the body is under:
(1) Non-uniform retardation.
(2) Uniform acceleration.
(3) Uniform retardation.
(4) Non-uniform acceleration.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 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 A body freely falling from rest has a velocity v after it falls through a height h. The distance it has to fall further for its velocity to become double is -
(1) 3 h
(2) 6 h
(3) 8 h
(4) 10 h
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion The motion represented by the displacement-time graph below is:
(1)
Uniform-motion with zero initial displacement.
(2)
Non-uniform motion with finite value of initial displacement.
(3)
Non-uniform motion with zero initial displacement.
(4)
Uniform-motion with finite value of initial displacement.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Motion The distance travelled by the body between 0 to 20 seconds?
(1) 260m
(2) 160m
(3) 300m
(4) 60m
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion A body of mass 2 kg is free to move along x-axis. It is at rest at t = 0.
From t = 0 onwards it is subjected to a time dependent force F(t ) in
x-direction. The variation of F with time is as shown :
The change in momentum during journey is (in N-s) :
(1) 4.50
(2) 7.50
(3) 5.06
(4) 14.06
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion A person takes time t to go once around a circular path of diameter 2R.
The speed (v) of this person would be -
(1) t / 2pR
(2) 2pR / t
(3) pR2 / t
(4) 2 pRt
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Motion At the top of its path a projectile has
(1) no acceleration
(2) acceleration in the upward direction
(3) acceleration in the downward direction
(4) acceleration in the horizontal direction
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion
The time interval between 24 to 52 seconds when the body travels the fastest is?
(1) 28 to 32 s
(2) 40 to 50 s
(3) 42 to 52 s
(4) 32 to 42 s
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
