In a given system, there is a positive work done and the potential energy is fo

Physics
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In a given system, there  is a positive work done and the potential energy is found to have increased. Can you tell if the amount of kinetic energy has increased, decreased, or stayed the same? Explain

May 25th, 2015

The kinetic energy has decreased.

This is because Potential Energy + Kinetic Energy = 0.

ΔKU=0. So, ΔK=-ΔU

This means that if the kinetic energy increases, the potential energy must decrease by the same amount to keep their sum constant.

May 25th, 2015

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