Obtain the derived unit of work​

We know that,

W = F.S

So unit of work = unit of force × unit of displacement

= NM (Newton metre)

Newton metre is also called Joule regarding the greatest scientist Joule.

Here we see the unit of work is derived with the help of other fundamental unit.

So unit of work is derived unit.

In calculus terms, power is the derivative of work with respect to time. ... Since work is force times displacement (W=F*d), and velocity is displacement over time (v=d/t), power equals force times velocity: P = F*v. More power is seen when the system is both strong in force and fast in velocity

because if the tool that you are using is not balanced it there would be false mass.