| 1 |
A force of 10 N acts on a body of mass 5 kg in one second. The change in its momentum will be. |
- A. 10 kgms-1
- B. 50 kg ms-1
- C. 2 kg ms-1
- D. 20 kg ms-1
|
| 2 |
If velocity time graph is parallel to time axis, then acceleration of moving body will be. |
- A. Maximum
- B. Positive
- C. Zero
- D. Negative
|
| 3 |
For a rocket , the change in momentum per second of the ejecting gases is equal. |
- A. Acceleration of the rocket
- B. Momentum of rocket
- C. Velocity of rocket
- D. Thrust acting on rocket
|
| 4 |
Height of projectile is maximum at an angle of. |
- A. 45<sup>o</sup>
- B. 60<sup>o</sup>
- C. 30<sup>o</sup>
- D. 90<sup>o</sup>
|
| 5 |
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
|
| 6 |
The slope of velocity time graph shows |
- A. Total distance covered
- B. Average acceleration
- C. Instantaneous acceleration
- D. Torque
|
| 7 |
The ballistic missiles are used only for |
- A. Long range
- B. Short range
- C. Medium range
- D. Constant range
|
| 8 |
Distance covered by a freely falling body is 2 seconds will be |
- A. 9.8 m
- B. 19.6 m
- C. 44.4 m
- D. 49 m
|
| 9 |
The acceleration of a projectile along x axis is. |
- A. Zero
- B. Increase
- C. Decrease
- D. Equal to 'g'
|
| 10 |
The shape of trajectory of short range projectile is |
- A. Straight line
- B. Circle
- C. Elliptical
- D. Parabolic
|