Which of the following is NOT correct condition for no work done ?

force and displacement are perpendicular to each another force and displacement are at 180 degrees with each other force causes no displacement no force acts

force causes no displacement

Work done is given by : \(W = \vec{F}.\vec{S} = FS \cos {\theta}\) \(W = FS \cos {90^0} = 0\) \(W = FS \cos {180^0} = -FS \) \(W = F(0) \cos {\theta} = 0\) \(W = (0)S \cos {\theta} = 0\)