1.) Your friend is catching a falling basketball after it haspassed through the basket. Her hands move straight down whilecatching the ball. Take that it takes about 0.10 s for the playerto lower her hands to stop the ball. Assume the mass of the ball tobe 0.60 kg, and that it has fallen a vertical distance of 1.2 mbefore reaching the player's hand. Determine the average force thather hands exert on the ball while catching it.
2.) On a frictionless horizontal air table, puck A (with mass0.248kg ) is moving toward puck B (with mass 0.372kg ), which isinitially at rest. After the collision, puck A has velocity0.125m/s to the left, and puck B has velocity 0.653m/s to theright.
What was the speed vAi of puck A before the collision?
Calculate ?K, the change in the total kinetic energy of thesystem that occurs during the collision.
