A pole-vaulter is nearly motionless as he clears the bar, set (4.2 mathrm{~m}) above the ground. He
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A pole-vaulter is nearly motionless as he clears the bar, set \(4.2 \mathrm{~m}\) above the ground. He then falls onto a thick pad. The top of the pad is \(80 \mathrm{~cm}\) above the ground, and it compresses by \(50 \mathrm{~cm}\) as he comes to rest. What is his acceleration as he comes to rest on the pad?
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College Physics A Strategic Approach
ISBN: 9780321907240
3rd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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