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Physics, 29.01.2020 05:40 girlhooper4life11

When you push a child on a swing, your action is most effective when your pushes are time to concide with the natural frequency of the motion. you are swinging a 30 kg child on a swing suspended from 5 meter cables. estimate the optimum time interval between your pushes.
would your answer be different if the child had a different mass?

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