A 400-N child is in a swing that is attached to a pairof ropes 2.00 m long. Find the
Chapter 7, Problem 42(choose chapter or problem)
A 400-N child is in a swing that is attached to a pairof ropes 2.00 m long. Find the gravitational potentialenergy of the childEarth system relative to the childslowest position when (a) the ropes are horizontal,(b) the ropes make a 30.08 angle with the vertical, and(c) the child is at the bottom of the circular arc.
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