Question

Explain about positive work, negative work and zero work with proper examples and pepper conditions required for that in detail with calculation.

Answer 1

Zero work is done when there is no displacement of the force is acting perpendicular to the body Eg - Work done by gravity when a body moves on a horizontal table

Negative work is done when the displacement is opposite to the direction of the applied Force Eg - Work done the gravity on a rocket going perpendicular upwards

Positive work is when the Displacement is in the direction of the applied force Eg - You are pushing a box