Posted by Anonymous on Saturday, October 31, 2009 at 2:51pm.
How high has the child been raised?
I get 2.01(1-cos32.1)
then, mgh.
why would you subtract cos32.1 from 1?
and how would u find the gravitational potential energy when the child is at the bottom of the circular arc? would u just multiply the force (39.5N) by the height (2.01m)?
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