Question

An ant is dragging a house-fly and the elephant is pushing a big tree which is not moving. who is doing work, the ant or the elephant? justify your answer​

Answer 1

The ant

Step-by-step explanation:

we know that the formula to calculate the work is: Fs

even though the elephant does exert force on a big tree, the distance it moved, which is s, is zero. F*s = F*0 = 0. It doesn't do work.

in contrast, the ant does exert force to drag a housefly, and it does move it, so it is doing work.