Why does a tennis ball bounce higher on hills than in plains?
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The drag resistance due to air is less. So the ball bounces higher. Tennis ball bounce higher on hills than in plains because of low gravity . Means that , the force of the Earth is less at these places
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The acceleration due to gravity varies with height as g' = (1-2h/R) where R is the radius of the Earth and h is the height.As the formula indicates g decreases as height increasesSo on the hills the acceleration due to gravity is lesser and the ball bounces higher due to lesser force of gravitation.
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