Final answer:
Horsepower measures the rate of energy transfer or work done, equivalent to 746 watts. It is calculated using force, distance, and time, and is a common unit for measuring the power of engines and motors.
Step-by-step explanation:
Horsepower is a unit of measurement for power, which is the rate at which work is done or energy is transferred. Specifically, 1 horsepower is equivalent to 746 watts. In order to determine horsepower, you need to know three quantities: force, distance, and time. To calculate horsepower, you would measure the force applied to move an object over a distance within a certain amount of time, and then convert the resulting power measurement into horsepower using the aforementioned conversion factor (1 hp = 746 W).