So Energy Work. In summation mechanical energy refers to the energy possessed by an object in virtue of its position and motion. Energy Efficiency Formula The energy efficiency formula is based on energy output and inputenergy efficiency energy output energy input 100Energy output is the useful energy offered by an item such as the light generated by a light bulb.
Therefore the formula of mechanical energy will be.
12 mv2 where m stands for mass and v stands for velocity. Energy is required for the evolution and existence of life in any form on the Earth. Whatever be the operating force electromagnetic gravitational strong or weak every change that occurs in the universe is a conversion from potential to kinetic energyFrom merely being in a position in space in presence of forces a particle has an inherent energy associated with it thats termed as potential energy. The unit of power is the Watt W which is equal to a Joule per second Js.