Question

what is work done and the unit of work done?​

Answer 1

Answer:

when the force is applied to an object and displacement has done then it is said that work is done.

the unit of work done is Joule

Answer 2

Whenever a certain amount of force is applied on an object and it shows some displacement, work is said to be done. It is shown in form of 'J' (joules). Moreover, 'erg' is it's CGS unit.

More:-

Formula of work done by a constant force:-

$\boxed{W = Fs \ cos(\theta) }$

Work done by a variable force:-

$\boxed{W = \int \vec{F} \ d \vec{s} }$.