Power is the rate at which work is done or energy is transferred or converted. It quantifies how quickly energy is transferred or converted within a system. In mechanical engineering, power is a crucial parameter used to describe the performance of machines, engines, and other systems that involve the transfer or conversion of energy. The formula for calculating power ($P$) is based on the amount of work done ($W$) over a certain time interval ($t$):

Where,

• $P$ is power (in watts, W).
• $W$ is work done (in joules, J).
• $t$ is time (in seconds, s).