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To prevent damage to floors (and to increase friction), a crutch will often have a rubber tip

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To prevent damage to floors (and to increase friction), a crutch will often have a rubber tip attached to its end. If the end of the crutch is a circle of radius 0.95 cm without the tip, and the tip is a circle of radius 2.0 cm, by what factor does the tip reduce the pressure exerted by the crutch?

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Physics

Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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