Question

Reason out whether or not work is done in the light of your understanding of the term 'work'.

Food grains are getting dried in the sun.

Answer 1

Explanation:

1. Work is said to be done when there is a displacement in the direction of applied force.
2. If force and displacement are perpendicular to each other then the work is considered zero.
3. If there is no displacement in the direction of applied force, the work is considered zero.
4. When the food grains dry, a chemical change is occurring and there is no displacement for the grains.
5. Since there is no displacement or any force, the work done is considered zero.

So the work done when grains are dried is zero.