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Law of Conservation of Energy

The variation...

Question

The variation in the kinetic energy (K.E.) and the potential energy (P.E.) of a particle moving along the x-axis are shown in the graphs below. Which one of the following graphs violates the law of conservation of energy?

A

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B

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C

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D

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Solution

The correct option is D

According to the law of conservation of energy at all positions K.E. + P.E. = constant.
Graph (4) violates the law of conservation of energy.

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