A bumper for a mine car is constructed with a spring of stiffness k = 1120 lb/in.

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A bumper for a mine car is constructed with a spring of stiffness k = 1120 lb/in. (see figure). If a car weighing 3450 lb is traveling at velocity v = 7 mph when it strikes the spring, what is the maximum shortening of the spring?

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Mechanics of Materials

ISBN: 978-0495438076

7th edition

Authors: James M. Gere, Barry J. Goodno

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Question Posted: Apr 19, 2016 05:48 AM

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A bumper for a mine car is constructed with a spring of stiffness k = 1120 lb/in.

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V k

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k 1120 lbin W 3450 lb v 7 mph 1232 insec g 322 ftse...View the full answer

Mechanics of Materials

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