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A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius is cut in half, by what factor will the speed change?


It will double. <----
It will be cut in half.
It will not change.
It will quadruple.
It will be √2 times faster

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  1. F = m v^2/r so v^2 = F r/m

    2F = m V^2/.5r so V^2 = F r/m

    The same

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    posted by Damon

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