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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 |
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