Author Question: Frank says that if you release the string when swinging a ball in a horizontal circle, the ball ... (Read 114 times)

ghost! · **on:** Aug 1, 2020

Frank says that if you release the string when swinging a ball in a horizontal circle, the ball flies out in the radial direction defined by the string at the instant you release the ball. John says that it flies out along a tangent line perpendicular to the string, and that it then drops straight down to the ground. Which one, if either, is correct?

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Frank, because the centrifugal force is no longer counteracted by the string.

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Frank, because balls naturally fly straight out.

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John, because there is no centrifugal force.

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John, because balls fall straight down when released.

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Neither, because although there is no centrifugal force, and the ball's velocity is tangent to the circle at the instant of release, the ball then follows a parabolic trajectory.

blakcmamba · **Reply #1 on:** Aug 1, 2020

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