Question

A boy pushes a book by applying a force of 40N. Fin the work done by this force as the book is displaced through 25cm along the path.

Answer 1

Here, force acting on the book, `F =40N`
distance through which book is displaced, `s =25 cm= 0.25 m`
Work done by the force, i.e., `W = Fxxs = (40N)(0.25m) = 10J`