Question

what is work? write SI unit and defenation of unit?

Answer 1

The SI unit of work is the joule (J), which is defined as the work expended by a force of one newton through a displacement of one metre.

Answer 2

$\bold {ANSWER}$

$\implies$Work is defined as the force acting upon an object to cause a displacement

$\implies$Work is a scalar quantity which is the product of displacement and force in the direction of displacement.

$\implies$Mathematically work done can be expressed by the following expression

✔W = F × D

where W denotes work done F denotes force applied and D denotes displacement covered.

✔The S.I. unit of work is Joule ( J ).

$\implies$One Joule is defined as the amount of energy where 1 newton of force is applied and the body displaces through 1 m.