# If Olaf Catches the Ball, With What Speed vf Do Olaf and the Ball Move Afterward??

a. If Olaf catches the ball, initially moving at a speed of 10.8 m / s, with what speed vf do Olaf and the ball move afterward? Olaf‘s mass is 70kg and the ball‘s mass is 0.4kg. Express your answer numerically in centimeters per second.

If the ball hits Olaf and bounces off his chest horizontally at 7.70 m/s in the opposite direction, what is his speed v f after the collision?

Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. A friend throws Olaf a ball of mass 0.400kg that is traveling horizontally at 11.9m/s . Olaf‘s mass is 74.4k

If the ball hits Olaf and bounces off his chest horizontally at 7.20m/s in the opposite direction, what is his speed vf after the collision? from law of conservation of momentum , mu = ( m+ M ) v

from this speed of the Olaf and the ball move afterwards v = mu / ( m+ M)
= 0.06136 m / s
= 6.136 cm / s