A bullet of mass 0.010 kg and speed of 100 m/s is brought to rest in...
A bullet of mass 0.010 kg and speed of 100 m/s is brought to rest in a wooden block after penetrating a distance of 0.10 m.
The work done on the bullet by the block is _________.
50 J
-50 J
0.001 J
-0.001 J
Homework Answers
Mass of the bullet = M = 0.01 kg
Initial speed of the bullet = V1 = 100 m/s
Final speed of the bullet = V2 = 0 m/s (Brought to rest)
Work done on the bullet by the block = W
The change in kinetic energy of the bullet is equal to the work done on the bullet by the block.
W = -50 J
Work done on the bullet by the block = -50 J
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