Joule is the derived unit of work. Give reason.

Question

Accepted Answer

Work = force × distance. Unit of force is kg·m·s⁻² and unit of distance is m, so unit of work = kg·m·s⁻² × m = kg·m²·s⁻². Since this unit is formed by combining more than one fundamental unit (kg, m, s), it is a derived unit, and this combination is given the special name joule (J).