What is the unit of horsepower?

[McSavannah]

The unit of horsepower is PS, commonly known as 'horse'. Horsepower is a commonly used unit for measuring power in engineering, representing the physical quantity that determines a car's top speed. A higher horsepower means a higher top speed for the vehicle. Torque, on the other hand, measures the car's acceleration capability. Greater torque results in better acceleration performance, meaning the car has more 'power'. Relevant information about car horsepower is as follows: 1. Metric horsepower: Also known as 'meter horsepower', its definition is entirely artificial, set to a value very close to imperial horsepower. It is defined as the work done to lift a 75-kilogram force by one meter in one second. That is: 1 metric horsepower = 75 kilogram-force·meter/second = 735 watts. 2. Imperial horsepower: The concept of horsepower as a unit was named by James Watt, the improver of the steam engine, to represent the power of his steam engine relative to the pulling power of a horse. It is defined as 'the power of a horse capable of pulling 33,000 pounds at a speed of one foot per minute', with the watt (W) or kilowatt (kW) used as the standard unit.