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Physics MCQs

Which of the following statements correctly states the Law of Conservation of Mechanical Energy?

It states that when no non-conservative forces are acting, the sum of the kinetic and potential energies of an object are constant as the object moves around.

It states that the difference between the potential and kinetic energies of an object is zero, if no non-conservative forces are acting as the object moves around.

It states that an object is in force equilibrium if its potential energy function is minimum.

It states that the value of potential energy is twice the value of kinetic energies of an object, if no non-conservative forces are acting as the object moves around.

Answer

Correct Answer: It states that when no non-conservative forces are acting, the sum of the kinetic and potential energies of an object are constant as the object moves around.

Explanation:

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