problem02_54 solution

University Physics with Modern Physics with Mastering Physics (11th Edition)

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2.54: a) To average 4 hr mi , the total time for the twenty-mile ride must be five hours, so the second ten miles must be covered in 3.75 hours, for an average of 2.7 . hr mi b) To average 12 hr mi , the second ten miles must be covered in 25 minutes and
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Unformatted text preview: the average speed must be 24 . hr mi c) After the first hour, only ten of the twenty miles have been covered, and 16 hr mi is not possible as the average speed....
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