posted by sally .
A 67.5-kg basketball player jumps vertically and leaves the floor with a velocity of 1.66 m/s upward. (Take upward as positive and forward as positive.)
(a) What impulse does the player experience?
direction (up,down, back or zero)
(b) What force does the floor exert on the player before the jump?
(c) What is the total average force exerted by the floor on the player if the player is in contact with the floor for 0.450 s during the jump?