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A particle of mass moves along a circle of radius with a constant tangential acceleration. What is the magnitude of this acceleration if the kinetic energy of the particle becomes equal to by the end of the second revolution after the beginning of the motion ?
(a)
(b)
(c)
(d)

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Important Questions on Work, Energy and Power
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A particle is free to move along the -axis has potential energy given by for , where is a positive constant of appropriate dimensions. Then:

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