What is the speed of the bullet when it exits the block


A bullet with a mass of 4.0 g and a speed of 712 m/s is fired at a block of wood with a mass of 0.083 kg. The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 26 m/s.

(a) What is the speed of the bullet when it exits the block?

(b) Verify your answer by calculating the initial and final kinetic energies of the system.
Ki = J
Kf = J

 

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Physics: What is the speed of the bullet when it exits the block
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