A test machine that kicks soccer balls has a 6.4-lb simulated foot attached to the end of a 6-ft long pendulum arm of negligible mass. The arm is released from the horizontal position and the coefficient of restitution between the foot and the 1-lb ball is 0.8.
6 ft
60
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Section Break
Difficulty: Hard
Value: 10.00 points
Required information
Determine the exit velocity of the ball if the ball is struck when it is rolling towards the foot with a velocity of 10 ft/s. (Round the final answer to two decimal places.)
The exit velocity of the ball if the ball is struck when it is rolling towards the foot with a velocity of 10 ft/s is
ft/s
T.