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A thin block of soft wood with a mass of 0.0800 kg rests on a horizontal...

A thin block of soft wood with a mass of 0.0800 kg rests on a horizontal frictionless surface. A bullet with a mass of 4.67 g is fired with a speed of 564 m/s at a block of wood and passes completely through it. The speed of the block is 16.0 m/s immediately after the bullet exits the block.

(a) Determine the speed of the bullet as it exits the block.
__ m/s

(b) Verify by calculating the initial and final kinetic energies of the system.

Ki =

 __ J

Kf =

 __ J
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