Part A - Figure (a) A force P is applied to the end of a rod. The total length of the rod is L = 0.68 m . Find the LEVER ARM of this force with respect to pivot A (or hing, or rotational axis) . = 35. ,

T = lever arm e x F Axis of rotation F r lever arm e : lever arm (1) starts from axis of rotation C = r sin 0 toward line of force Line of force (2) perpendicular to force. Line of action Line of action F Line of action Axis of Rotation F F 400 50 ( = 0, since line of Lever arm = ( 0.9m action passes . Zero Torque e =(0.9m)sin50 =0.69m (a) ( =(0.9m)cos40 =0.69m (c)