Asked by Aadithya
A bullet moving at 20m/sec strikes a wooden plank and penetrates 4cm before coming to stop.The time taken to stop is?
Answers
Answered by
Scott
ave. velocity = (20 + 0) / 2 = 10 m/s
.04 m / 10 m/s = .004 s
.04 m / 10 m/s = .004 s
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