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A stone has initial potential and kinetic energy as 5 J and 20 J respectively if the final kinetic energy of the stone is 15 J what is its final potential energy?

A stone has initial potential and kinetic energy as 5 J and 20 J respectively if the final kinetic energy of the stone is 15 J what is its final potential energy? Correct Answer 10 J

5 + 20 = 15 + PE, => PE = 10 J.

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