What is the formula for calculating power?

The formula for calculating power is indeed work done per unit time. Power is defined as the rate at which work is performed or energy is transferred over time. It quantifies how quickly work is being accomplished.

When you perform work, such as moving an object over a distance, the amount of work done can vary depending on the force applied and the distance over which it is applied. However, power specifically relates to how fast this work is completed. For example, if you do a certain amount of work (like lifting an object) in a short amount of time, you are demonstrating high power. Conversely, if the same amount of work takes a longer period, the power is lower.

This foundational relationship is crucial in fields ranging from physics to engineering, allowing calculations involving efficiency and energy consumption to be made easily, which is particularly relevant in applications involving engines, motors, and other machinery.

In contrast, formulas that involve force, distance, energy, weight, and velocity carry specific meanings in mechanics but do not define power accurately as the rate at which work is done. Therefore, the most precise definition of power is indeed work done per unit time.