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Law of Conservation of Energy

A boy of mass...

Question

A boy of mass 50 kg is riding a bicycle with a speed to MLS the bicycle has a mass of 10 kg calculate the total kinetic energy when the bodies are stationary do they posses energy

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Solution

There is no kinetic energy as the bodies are at rest(velocity=0)
If the bodies are at a height then it would posses potential energy,it already have gravitational force acting on it

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