When T =0 T=rF sin e If r=o-that is the force is applied at or through the axis of rotation If 8=or 180, that is the force is applied in the radial direction; If F=0If r=0 -that is the force is applied at or through the axis of rotation; If or , that is the force is applied in the radial direction; If =0.   = 0 180 When =0 ?   = rF sin  → F