Question

explain : A coolie moving on a plane road does not do any work ​

Answer 1

Explanation:

No there is no work done against the force of gravity because the displacement and the direction of force are at an angle of 90°. Explanation: ... So, the coolie does work against gravity equal to the total weight he is carrying (his body weight and the weight of whatever he is wearing, carrying, etc).

Answer 2

Answer:

No there is no work done against the force of gravity because the displacement and the direction of force are at an angle of 90°. Explanation: ... So, the coolie does work against gravity equal to the total weight he is carrying (his body weight and the weight of whatever he is wearing, carrying, etc