A 60-kg woman jumps off a wall 80 cm high and lands on a concrete road with

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A 60-kg woman jumps off a wall 80 cm high and lands on a concrete road with her knees stiff. Her body is compressed by 8 cm at the moment of impact.

(a) What was the average force the road exerted on her body? 

(b) If the woman bent her knees on impact so that she came to a stop over a distance of 40 cm, what would the average force on her body be?

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The Physical Universe

ISBN: 978-0077862619

16th edition

Authors: Konrad B Krauskopf, Arthur Beiser

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