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A 4 kg wooden block is at rest on a tabletop. A 0.03 kg bullet enters the block going at 800 m/s. It passes through the 0.2 m thick block, emerging at 425 m/s. Assume no mass is lost in the collision. Also assume that while the bullet moves through the block it does so at a constant acceleration.

a) How much time was the bullet in the block?

b) What average force did the bullet exert on the block?

c) What was the block's initial velocity when the bullet emerged?

d) Sketch a complete free-body diagram of the block sliding on the rough table.

e) If the block slides 0.81 m before stopping, what is the coefficient of kinetic friction between the block and the table?

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Category:- Physics
Reference No.:- M91028452

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