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

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A bullet with a mass of 4.0 g and a speed of 650 m/s is fired at a block of wood by a mass of 0.095kg. The block rests on a frictionless surface and is thin enough so that the bullet passes completely during it. Instantly after the bullet exits the block, the speed of the block is 23 m/s.

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

 

B) What are the initial and final kinetic energies for this system? Describe.

Reference no: EM13659329

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