The 3.5-{rm Mg} engine is suspended from a spreader beam having a negligible mass and is hoisted by a crane which exerts a force of 40 {rm kN} on…

The 3.5-{rm Mg} engine is suspended from a spreader beam having a negligible mass and is hoisted by a crane which exerts a force of 40 {rm kN} on the hoisting cable.