Question

which dorce is involved in dragging a heavy object on a smooth horizontal surface have the same magnitude

Answer 1

muscular energy is required for dragging the body

Answer 2

Hey friend......
It is the kinetic friction opposing the force applied to drag it. Initially the force applied have to be. equal to the limiting friction slightly more than the kinetic friction . Once the body starts moving , the kinetic friction comes into play just to keep it moving.

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