Question

Ravi applied a force of 10n and moved a book 30cm in the direction of the force . How much was the wok done by Ravi

Answer 1

Force applied on the book = 10 N

Displacement in the direction of force = 30 cm = 0.3 m

Let the work done by the force be W.

Work done (W) = Force × displacement

W = 10 × 0.3

W = 3 Joules

Hence, the work done on the book by the force is 3 Joules. It is positive because the displacement is happening in the direction of the force.