Describe horsepower and list the three quantities needed to determine horsepower?

Horsepower is a unit of measurement that quantifies the power output of engines or motors, indicating how quickly work is done. To determine horsepower, you need three quantities: torque (measured in pound-feet or Newton-meters), engine speed (measured in revolutions per minute or RPM), and a conversion factor (for example, 5252 for torque in pound-feet when calculating horsepower at RPM). The formula for calculating horsepower is: Horsepower = (Torque × RPM) / 5252.