Question

state the condition for zero work done​

Answer 1

Answer:

In physics, work done is actually always with the aspect of an external agent which is known to produce a force on some other entity. The work is stated as zero when there is no displacement of any given object along a line of force

Answer 2

1 when force is perpendicular to object circular dispacemen

2 balanced forces are applied in opposite direction.

in these conditions work done=0

I hope it helps you....