Asked by Ivan

A linear spring of stiffness k is designed to stop the 20-Mg railroad car traveling at 8 km/h within 400mm after impact. Find the smallest value of k that
will produce the desired result.

11 years ago

Answered by Damon

I did this already.

11 years ago

Answered by Damon

http://www.jiskha.com/display.cgi?id=1395061565

11 years ago

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