| 1 |
A man of 5000 kg moves with an acceralation of 1 ms-2 force acting on it is. |
- A. 5 N
- B. 500 N
- C. 50 N
- D. 5000 N
|
| 2 |
The rate of change of momentum is equal to |
- A. Impulse
- B. Torque
- C. Velocity
- D. Force
|
| 3 |
A bullet shot straight up, return to its starting point in 10 sec. Its initial speed was |
- A. 9.8 ms-1
- B. 24.5 ms-1
- C. 49 ms-1
- D. 98 ms-1
|
| 4 |
The velocity of a projectile is maximum |
- A. At the highest point
- B. At point of launching and just before striking the ground
- C. At half of the height
- D. After striking the ground
|
| 5 |
Unit of acceleration is |
- A. ms-1
- B. ms
- C. ms-2
- D. m2s
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| 6 |
The velocity of a free falling body just before Hattin the ground is 9.8 ms-1, the height through which is fall be |
- A. 98 m
- B. 19.6 m
- C. 4.9 m
- D. 9.8 m
|
| 7 |
In matter, the Atoms are in a state of never ending |
- A. Motion
- B. Rest
- C. Change
- D. State of decline
|
| 8 |
When velocity time graph is a straight line parallel to time axis then |
- A. Velocity is zero
- B. Acceleration is constant
- C. Acceleration is zero
- D. Velocity is variable
|
| 9 |
If a mass of a body is doubled, then acceleration becomes. |
- A. Double
- B. Half
- C. One fourth
- D. Constant
|
| 10 |
Total change in momentum of an isolated system is |
- A. Always (+) ve
- B. Always (-) ve
- C. Has maximum value
- D. Zero
|