The mechanical energy of an object equals its

A. chemical energy plus its nuclear energy.

B. kinetic energy plus its potential energy.

C. nuclear energy.

D. thermal energy.

"Mechanical Energy" is the category where

kinetic energy and potential energy are filed.

I think the correct answer from the choices listed above is option B. The mechanical energy of an object equals its kinetic energy plus its potential energy. It should be equal to energy that it posses and the energy of motion it has. Hope this answers the question.