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Klane
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nijh
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Work is defined as the application of force over a distance. It is calculated by multiplying the force applied on an object by the distance the object moves in the direction of the force. The unit for work is joules (J).
Distance is directly proportional to the work done. This means that the more distance an object moves, the more work is done on the object. Work cannot be done if there is no displacement or change in distance.
Power is the rate at which work is done or energy is transferred. It is the amount of work done per unit of time. Power is different from work in that it takes into account the time it takes to do the work, while work only looks at the amount of force and distance.
The unit for power is watts (W). It is calculated by dividing the amount of work done by the time it takes to do the work. Another way to calculate power is by multiplying the force applied by the velocity at which the force is applied.
Horsepower is a unit of power that is commonly used to measure the power of engines. It is equivalent to 550 foot-pounds per second or 746 watts. It is used to compare the power of different engines or motors. It is related to power in that it is another unit used to measure the rate at which work is done.