Question

Define work and state its SI unit. What are the two factors on which the work depends?

Answer 1

1. Work is said to be done only when a force applied to a body causes displacement in the direction of the applied force.
2. SI unit of work is Joule (J).
3. Work done depends on the following factors-
   1. Force applied (magnitude and direction)
   2. Displacement (in the direction of the applied force)