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**Unformatted text preview: **of the ball at a point just above the ground. (1 of 2) [2/4/2008 4:37:49 PM] The decrease in the mechanical energy corresponds to the work done by the force of air resistance on the ball. The net work done due to the air resistance can be calculated as shown below. Let be the average force of air resistance, and let be the distance over which the force acts. Consider the equation connecting the net work done and the average force of air resistance. Substitute for , 13.0 m for , and solve for . Thus, the average force of air resistance on the ball would be . (2 of 2) [2/4/2008 4:37:49 PM]...

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- Energy, Potential Energy, Total mechanical energy