Which of the following defines work?

The definition of work in physics is expressed as the product of force applied to an object and the distance over which that force is applied, which is precisely represented as force multiplied by distance. This relationship emerges from the fundamental principles of energy transfer, where work is done when a force causes an object to move. Essentially, if you push or pull an object and it moves in the direction of the force, the work done is the force multiplied by the distance moved in that direction.

In mechanical systems, understanding work as force times distance is crucial for analyzing energy systems, such as machinery and engines, since it directly correlates to how energy is expended or transformed. Thus, the concept of work highlights how energy transfers occur when forces act over a displacement.