If a box is held 3m above the ground and it has a Fg= 400N how much work is being done to hold the box in place? How do you know?

Answer 1

In Physics, work is defined as a force (F) acting through a distance (d): Work = F times d. In this case there is a force present (the box's weight), but the box is not being moved through a distance, so work = F x 0 = 0.

No work (in the Physics sense) is being done.