Physics, 30.11.2019 02:31 thestuckone
Achild with a weight of 220 n swings on a playground swing attached to 1.90-m-long chains. what is 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
(b) when the ropes make a 25.0° angle with the vertical
(c) when the child is at the bottom of the circular arc
Answers: 1
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Achild with a weight of 220 n swings on a playground swing attached to 1.90-m-long chains. what is t...
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