A 40 Kg Ball Is Traveling at 3

Multiple Choice

A 4.0 kg ball is traveling at 3.0 m/s and strikes a wall. The ball bounces off the wall with a velocity of 4.0 m/s in the opposite direction. If the ball is in contact with the wall for 0.10 seconds, then the magnitude of the average force on the ball during contact is

A) 230 N.
B) 280 N.
C) 320 N.
D) 360 N.
E) 400 N.