is the sum total of potential and kinetic energy. Potential energy is possessed due to its position, whereas kinetic energy is possessed due to the movement of the object. If an object is moving, potential energy should be zero. If the object is at rest, the kinetic energy should be zero. The mechanical energy formula is,
is the mass of an object and v
is the velocity of that object, g
is the acceleration due to gravity and h
is the height of an object.