MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A bullet of mass 30 g is fired from a gun with a muzzle velocity 90ms−1. If its mass is 4 kg then the recoil of the gun will be |
| A. | − 0.34 ms−1 |
| B. | 0.54 ms−1 |
| C. | − 0.54 ms−1 |
| D. | 0.34 ms−1 |
| Answer» D. 0.34 ms−1 | |
| 2. |
A brick of mass 100 g is attached to a rope 1m long. The brick is rotating in a circle with 5ms−1 speed. The tension in the rope will be |
| A. | 3 N |
| B. | 2.5 N |
| C. | 4 N |
| D. | 1.5 N |
| Answer» C. 4 N | |
| 3. |
A body of mass 10 kg is moving with the velocity of 15 ms−1. The force required to stop it in 3 seconds should be |
| A. | 50 Ns |
| B. | 100 Ns |
| C. | 75 Ns |
| D. | 170 Ns |
| Answer» D. 170 Ns | |
| 4. |
A body continues its state of rest or of uniform motion in a straight line provided no net force acts on it, this statement is called |
| A. | newton's 2nd law of motion |
| B. | newton's 1st law of motion |
| C. | newton's 3rd law of motion |
| D. | law of momentum |
| Answer» C. newton's 3rd law of motion | |