A 10 g bullet moving 1000 ms strikes and passes through a, Ask an Expert

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A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s.

(a) How much energy was lost in the collision?

(b) Calculate the average force exerted on the block assuming that the impact time is 10-4s.

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