Answer:
Mechanical energy
Step-by-step explanation:
Mechanical energy is the energy of an object because of potential and kinetic energies. It is the sum of both kinetic and potential energies.
Kinetic energy is given by the motion of an object while the potential energy is possessed due to its height above ground level. It is also called the total energy of an object. Mathematically, mechanical energy is given by :
or
So, the correct option is (d) "mechanical energy". Hence, this is the required solution.