A 300-kg counterweight, with center of mass at G, is mounted on the pitman crank AB of

Question:

A 300-kg counterweight, with center of mass at G, is mounted on the pitman crank AB of the oil-pumping unit. If a force of F = 5 kN is to be developed in the fixed cable attached to the end of the walking beam DEF, determine the torque M that must be supplied by themotor.