A 70-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 0.5 ms. The ball rebounds elastically, and returns to its original height. The time interval for a round trip is 2.00 s. In this situation, the average force exerted on the ball during contact with the plate is closest to:
The Attempt at a Solution
Im not sure about alot in this problem. Do I calculate the velocity has it falling for 1 sec or .75 sec or I shouldnt need to do that? Im so confused on this one.