Determine how fast does it move after the bullet emerges

Reference no: EM13334995

1) On a frictionless horizontal air table, puck A (with mass 0.255kg) is moving toward puck B (with mass 0.367kg), which is initially at rest. After the collision, puck A has velocity 0.125m/s to the left, and puck B has velocity 0.649m/s to the right.

a) What was the speed vAi of puck A before the collision?

b) Calculate ?K, the change in the total kinetic energy of the system that occurs during the collision.

2) A 23g bullet traveling 260 m/s penetrates a 2.7 kg block of wood and emerges cleanly at 205m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

Reference no: EM13334995

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