Alex Throws a 0

Multiple Choice

Alex throws a 0.250-kg rubber ball down onto the floor.The ball's speed just before impact is 5.30 m/s,and just after is 3.71 m/s.If the ball is in contact with the floor for 0.028 s,what is the magnitude of the average force applied by the floor on the ball?

A) 80.4 N
B) 14.2 N
C) 47.3 N
D) 33.1 N
E) 2.25 N