Which equation shows the correct relationship between mechanical energy, kinetic energy, and potential energy?
Answer
A
ME is equal to KE plus PE
B
ME is equal to KE minus PE
C
ME plus KE is equal to PE
D
ME plus PE is equal to KE
Explanation
Mechanical energy is the total of an object's kinetic energy and potential energy. So the relationship is ME = KE + PE, which matches choice D, “ME is equal to KE plus PE.”
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