Here's why:
* Work is defined as the product of the force applied and the displacement of the object in the direction of the force.
* Force is a push or pull that can cause a change in motion.
* Displacement is the change in position of an object.
Key points:
* Work is done only if there is a displacement in the direction of the force. If an object is pushed but doesn't move, no work is done.
* The amount of work done is directly proportional to the force applied and the distance the object moves.
* Work is a scalar quantity, meaning it only has magnitude, not direction.
Example:
If you push a box across a room, you are applying a force. The box moves in the direction of the force, so work is done. The amount of work depends on how hard you push (force) and how far the box moves (displacement).