Question

Asked Mar 7, 2019

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A 300-N child is in a swing that is attached to a pair of ropes 1.90 m long. Find the gravitational potential energy of the child–Earth system relative to the child's lowest position when the ropes make a 27.0° angle with the vertical in joules.

Step 1

The gravitational potential energy of the child is given by,

Step 2

The height the child reaches when the ropes makes an angle with the vertical is given by,

Step 3

Thus, the gravitational potentia...

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