How many watts are there in 1 horsepower (hp)?

One horsepower is equivalent to 746 watts. This conversion is based on the definition of horsepower established by James Watt, which is a unit of power measurement used to express the rate at which work is done or energy is transferred.

In addition to the conversion to watts, horsepower can also be expressed in terms of foot-pounds per second. Specifically, 1 horsepower is equal to 550 foot-pounds per second of work. This relationship between horsepower and foot-pounds per second further supports the understanding that horsepower represents a rate of energy transfer.

Thus, both the conversion to watts and the expression in foot-pounds per second are accurate representations of horsepower, making the option indicating that both these statements are correct valid. It is important to recognize that knowing both contexts of horsepower can be useful in various applications, especially in mechanical and engineering scenarios, where understanding both power and work is crucial.