Physics, 19.12.2019 19:31 LarryJoeseph
A190 n child is in a swing that is attached to ropes 2.10 m long. find the gravitational potential energy of the child-earth system relative to the child's lowest position at the following times.
(a) when the ropes are horizontal the correct answer is not zero.
(b) when the ropes make a 34.0° angle with the vertical.
(c) when the child is at the bottom of the circular arc
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A190 n child is in a swing that is attached to ropes 2.10 m long. find the gravitational potential e...
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