Answer: The correct answer is mechanical energy.
Explanation:
Kinetic energy is due to the motion of the object.
Potential energy is the energy due to the position of the object.
Mechanical energy is the sum of the kinetic energy and the potential energy.
The expression of the mechanical energy is as follows:
ME= KE+ PE
Here. KE is the kinetic energy and PE is the potential energy.
In a closed system, mechanical energy is equal to potential energy plus kinetic energy. According to the conservation law of mechanical energy,the total mechanical energy of the system is conserved in a closed system.