Question

The workdone by a force is defined as W=F bar .S bar . In a certain situation F bar and S bar are not zero but the
work done is zero. From this we conclude that
a) F and S are in the same direction
b) F and S are in opposite direction
c) F and S are at right angles
b) F and S are in opposite direction
d) none of these

Answer 1

Answer:

c is the right answer i think if right please reply me please