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September 1, 2014

Homework Help: physics

Posted by help on Tuesday, November 23, 2010 at 10:02am.

A moving 2.8 kg block collides with a horizontal spring whose spring constant is 215 N/m (see figure). The block compresses the spring a maximum distance of 11.5 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.48

How much mechanical energy is being dissipated by the force of friction while the block is being brought to rest by the spring?
I found the work done by the spring -1.42J

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