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Collision and Friction :: Discussion
| 3. | A bullet of mass 20g is found to pass two points 30m apart in a time interval of 4s. Calculate the kinetic energy of the bullet if it moves with constant speed. | |
| A. | 2.5J | |
| B. | 5J | |
| C. | 0.562J | |
| D. | 2J | |
| Answer: Option C | |
| Explanation: | |
|
Speed, v = (Distacne )/Time = 7.5m/s |
|
| Tutorial Link: |
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