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A ball loses 15.0% of its kinetic energy when it bounces back from a concrete walk. With what speed must you throw it vertically down from a height of 12.4 m to have it bounce back to that same height? Ignore air resistance.

A ball loses 15.0% of its kinetic energy when it bounces back from a concrete walk. With what speed must you throw it vertically down from a height of 12.4 m to have it bounce back to that same height? Ignore air resistance.

Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
8 years ago
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