Why does the total amount of mechanical energy stay constant in a system? Options: A . &nbspenergy is not created or destroyed B . &nbspenergy leaves C . &nbspenergy enters D . &nbspenergy is not converted from one form into another

Why does the total amount of mechanical energy stay constant in a system?

Question

Why does the total amount of mechanical energy stay constant in a system?

Options:

A . energy is not created or destroyed

B . energy leaves

C . energy enters

D . energy is not converted from one form into another

Answer: Option A

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