Question

Define work. Write its formula. What is the SI unit of work? Is it a scalar or a vector quantity?​

Answer 1

Work is the measure of energy transferred when a object is displaced by the action of force.

Work = Force • Displacement

SI unit is Joule

It is a scalar quantity.

Answer 2

→ work:

The energy that is transferred from or to an object by applying force along with a displacement is known as work. when a force causes a displacement then we can say the work is done.

→  Formula:

W = FS

where;

W = work done.

F = force applied.

S = displacement.

→ SI unit of work:

SI unit is Joule and it is represented by J.

→ Scalar quantity:

Work is a scalar quantity, mathematically given by the scalar product.