A Very Small 51-G Steel Ball Is Released from Rest

Multiple Choice

A very small 51-g steel ball is released from rest and falls vertically onto a steel plate.The ball strikes the plate and is in contact with it for 0.50 ms.The ball rebounds elastically (at the same speed) and returns to its original height.The total time interval for a round trip is 3.00 s.What is the magnitude of the average force exerted on the ball by the plate during contact with the plate?

A) 3000 N
B) 1500 N
C) 2490 N
D) 2000 N
E) 3500 N