A rubber ball bounces upward one-half the height that it falls each time it hits the ground. If the ball was originally dropped from a distance of 20.0 feet above the ground, what was its maximum height above the ground, in feet, between the third and fourth time it hit the ground?
Correct answer: 2.5
(parsed from the explanation — this source omits an answer key
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Explanation
The correct answer is 2.5. After hitting the ground once, the ball bounces to feet. After hitting the ground a second time, the ball bounces to feet. After hitting the ground for the third time, the ball bounces to feet. Note that 2.5 and 5/2 are examples of ways to enter a correct answer.
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id cb_question_bank:9fd9c32c-58ba-4806-99c4-5b6c680ec632 · question 100030d9 · IBN 070617-DC
· JSON