| 1 |
The weight of an object an elevator moving down with an acceleration of 9.8 m/s2 will becomes |
- A. Half
- B. Double
- C. Unchanged
- D. Zero
|
| 2 |
The amount of inertia of 10 kg hoop about the axis of rotation perpendicular to its plane having radius 5 m is |
- A. 50 kgm2
- B. 100 K gm2
- C. 150 K gm2
- D. 250 K gm2
|
| 3 |
100 radians are equal to. |
- A. 57.3<sup>o</sup>
- B. 75.3<sup>o</sup>
- C. 573<sup>o</sup>
- D. 5730<sup>o</sup>
|
| 4 |
The value of a time period of allow flying satellite is |
- A. 1 year
- B. 84 minutes
- C. 28 hours
- D. 1 day
|
| 5 |
The formula of centripetal acceleration is |
|
| 6 |
Angular momentum has the same unit as |
- A. Impulse x distance
- B. Power x time
- C. Linear x time
- D. work x frequency
|
| 7 |
The product of rotational inertial 'I' and angular velocity ' w' is equal to. |
- A. Torque
- B. Linear momentum
- C. Angular momentum
- D. Force
|
| 8 |
If a body is moving in the counter clockwise direction the direction of angular velocity will be |
- A. Toward the centre
- B. Away from the centre
- C. along the linear velocity
- D. Perpendicular to both radius and linear velocity
|
| 9 |
The diver spin faster when moment of inertia becomes. |
- A. smaller
- B. Greater
- C. Constant
- D. Equal
|
| 10 |
Time period of geostationary satellite of radius 'R' is |
- A. 1 hour
- B. 48 min
- C. 1 day
- D. 1 month
|