Question

Mohammed can move heavy boxes by sliding them over the ground or can push them on a trolley then roll them over the ground. Explain which way makes it easier to move the boxes. Justify the reason for the same

Answer 1

Answer:

Explanation: Pushing them on a trolley makes it easier because by sliding, he has to overcome frictional forces of the surface (sliding friction) whereas on a trolley, he will have to apply force to rotate the wheels which uses rolling friction. Moreover, rolling friction is less than sliding friction.