A22g bullet traveling 210 m/s penetrates a 2.0kg block of wood and emerges going 150m/s. if the block were stationary on a frictionless plane before the collision, what is the velocity of the block after the bullet passes through? what is the kinetic energy loss of the system?

speed of block is 0.665 m/s

Kinetic energy loss is 237.16 J

Explanation:

Here we can use momentum conservation as there is no external force on the system in horizontal direction

so here we will have

Now kinetic energy loss in the system is given as

electrical to thermal

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