Question

write definition of work can it be negative also give example​

Answer 1

work is the product of force and displacement.

yes, the work cn be negative also. It happen when the force and displacement act in different directions.

Fot eg- when frictional force is acting on an object, the work done by the object is in negative

Answer 2

if some force is applied on the body and it covers some distance, then it is said to be in work.

formulae of work

W= F * S

if the force has a component in the same direction as the displacement of the object, the force is doing positive WORK. If the force has a component in the direction opposite to the displacement, the force is NEGATIVE then.