what will be the maximum kinetic energy acquire by a stone of mass 20 kg. resting at top of a mountain of height 250m on rolling down the ground.
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It would be equal to the potential energy.
K.E. = P.E.
K.E. = mgh
K.E. = (20)(9.8)(250)
K.E. = 49000J
K.E. = P.E.
K.E. = mgh
K.E. = (20)(9.8)(250)
K.E. = 49000J
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since kinetic energy is equal to the potential energy. Therefore, kinetic energy = potential energy kinetic energy = mgh kinetic energy = 20*9.8*250. kinetic energy = 49,000 J. hope it will help you ☺️☺️
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