Final answer:
No work was done when Tim applied a force of 400 newtons to a stationary box, as work is the product of force and displacement and the box did not move; hence, the work done is 0 joules.
Step-by-step explanation:
The student asked how much work was done when a force of 400 newtons was applied to a box that did not move. The answer is A. 0 J. This is because work is calculated as the product of the force applied to an object in the direction of its motion and the distance the object moves while the force is being applied. Since the box did not move, the distance is zero, and therefore, the work done is also zero.