# Physics

A child sitting 1.80 m from the center of a merry-go-round moves with a speed of 1.45 m/s . Calculate the centripetal acceleration of the child.Calculate the net horizontal force exerted on the child. (mass = 28.5 kg )

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1. physics 8 éme

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2. acceleration=v^2/r=1.45^2/1.80 m/s^2

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