| 1 |
Law of motion was presented by the scientist. |
- A. Einstein
- B. Newton
- C. Galileo
- D. Archimedes
|
| 2 |
Which of the following is unit of momentum? |
- A. Nm
- B. Kgms<sup>-2</sup>
- C. Ns
- D. Ns<sup>-1</sup>
|
| 3 |
Two bodies of masses m<sub>1</sub> and m<sub>1</sub> attached to the ends of an inextensible string passing over a frictionless pulley such that both move vertically. The acceleration of the bodies is: |
- A. m1 x m<sub>2</sub> / m<sub>1</sub> + m<sub>2</sub> g
- B. m<sub>1</sub> - m<sub>2</sub> / m<sub>1</sub> + m<sub>2</sub> g
- C. m<sub>1</sub> + m<sub>2</sub> / m<sub>1</sub> - m<sub>3</sub> g
- D. None of these
|
| 4 |
Rate of change of momentum is equal to: |
- A. Mass
- B. Torque
- C. Weight
- D. Force
|
| 5 |
If the force of 25 N is acting along the string to balance the weight then tension in string is |
- A. 25 N
- B. 50 N
- C. Zero
- D. None
|
| 6 |
In symbols, Newton's second law of motion is stated as |
- A. F = m/a
- B. F = ma
- C. F = a/m
- D. F = ma<sup>2</sup>
|
| 7 |
The formula to determine the centripetal force is: |
- A. Ms
- B. mv<sup>2</sup>/r
- C. Ns
- D. Ns<sup>-1</sup>
|
| 8 |
Which parameter remain same every where? |
- A. Force
- B. Mass
- C. Weight
- D. Velocity
|
| 9 |
A body jumps out of a moving bus. There is a danger for him to fall: |
- A. Towards the moving bus
- B. Away form the bus
- C. In the direction of motion
- D. opposite to the direction of motion
|
| 10 |
The momentum of two or more than two bodies intersacting remain constant in: |
- A. Law of inertia
- B. Isolated system
- C. System
- D. None
|
