Correct Answer - Option 2 : joule

**CONCEPT**:

**Work is a form of energy.**
- It is the dot product of Force and Displacement.

\(W = \overrightarrow{F}.\overrightarrow{d}=Fd~cosθ\)

where W is the work done, F is the force, d is the displacement, and θ is the angle between F and d.

**EXPLANATION**:

- Since work is a form of energy.
- The unit of work will be the same as the unit of energy.
- So the
** SI unit of work is Joule.**
- Hence the correct answer is
**option 2.**