Question

write the difference between negative and positive work done​

Answer 1

Answer:

Work can be either positive or negative: 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 does negative work.

Answer 2

Positive work

When force and displacement are in the

same direction, the work performed on an object is said to be positive work.

Example: When a body moves on the horizontal surface, force and displacement act in the forward path. The work is done in this case known as Positive work.

Negative work

Negative work is performed if the displacement is opposite to the direction of the Force applied.

Example: Work was done the gravity on a rocket going perpendicular upwards.