Question

A cookie is walking on the planet form with 30kg load on his head. How much work is done by the cookie?​

Answer 1

Answer:

Work done against gravity is zero as there is no displacement along or opposite to the direction of force of gravity.

Answer 2

Explanation:

Coolie is carrying a load on his head so force exerted by it under gravity and displacement of the load makes 900 angle.  W = 0               [ ∵ Force is perpendicular to the displacement ]  Therefore, Work done by the coolie is zero .