February 27, 2017

Homework Help: physics

Posted by Charles on Tuesday, January 24, 2012 at 12:16pm.

A mass with an initial combined potential energy and kinetic energy of 10,000 joules is dropped onto a fence post to drive it into the ground. The post is driven 0.25 meters into the ground before it comes to rest with the mass sitting on top of the post. How much work was done on the post by the mass? (The post is for a large corral for gazelles)

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