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December 20, 2014

Homework Help: Physics

Posted by mymi on Monday, October 24, 2011 at 8:03am.

A 1-kg thin hoop with a 50-cm radius rolls down a 47 slope without slipping. If the hoop starts from rest at the top of the slope, what is its translational velocity after it rolls 16 m along the slope?

I got the height by 16sin47=11.7 m
I tried putting the k.e and p.e equations equal......lost!

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