physics

In the ideal case of zero resistance, a ball rolling on a level surface will accelerate

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asked by brenda
  1. That is false.

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    posted by drwls
  2. False.

    It will not accelerate because the extra kinetic energy has to come from somewhere. On a level surface, the gravitational potential energy does not change.

    However, it will not decelerate, because no energy is dissipated, apart from air resistance, which I assume is neglected.

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    posted by MathMate

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