Question 229559
 If a ball bounces 2/3 of its previous height each time it bounces, how high will the ball bounce after the fifth bounce if the ball is dropped from 20 feet?
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h = 20*(2/3)^5 = 20*(32/243)
h = ~ 2.634 feet
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This is similar to the physics term "coefficient of restitution"
The COR for this example is {{{sqrt(2/3)}}}