An engineer needs to lift a horizontally oriented 4.2m long 218kg beam in the air with a crane. The beam has a 24kg mass .40 m from the end of the north side and a 1 1kg mass .60 m from the south side. a) Where should the engineer place the cable to lift the beam? b) What would the torque on the beam be if a 4.2 kg bird lands on the very tip of the south side of the beam when it is suspended? c) What work is performed by the crane if it lifts the beam 4.0 m into the air