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Answer:
Work is defined as a force acting on something as it moves a certain distance. Applying a force to an object is not enough. You must make the object move.
Force is measured in newtons (N). Suppose we say that an object weighs 3 newtons. We are saying that 3 newtons of gravitational force are being exerted on the object. So newtons are a measure of both force and weight. If you multiply the object's force with the distance the object ravels, you will determine the amount of work done.
The unit used to measure work is called the joule. If you lift an object that weighs 100 newtons upward 5 meters, you have done 500 joules, or newton-meters, of work. But pushing a box against 20 newtons of friction over a distance of 25 meters also equals 500 joules of work. Because work equals force times distance, applying a greater force over a shorter distance involves the same amount of work as applying a lesser force for a greater distance.
Formula:
force (newtons) x distance (meters) = work (joules)
newtons x meters = joules