Question

state 2 conditions when no work is done by force

Answer 1

the two condition when no work is done by force are as follows :

• when the angle between the displacement and force applied is 90 degree the force applied is perpendicular to the displacement

• no work is said to be done if there is no change in position or no motion even after application of force

Answer 2

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the two conditions when no work is done by force are :

1- when the angle between the displacement of the object and the force applied is 180 degree

2- when there is no displacement in the object although force is constantly being applied