What is the work done on the beam by the crane? What is the work done by the force of gravity on the beam?

A crane lifts a 1265 kg steel beam vertically 26 m, it then stops and swings the beam 3 m horizontally into a position where the welders can secure it into its proper position. What is the work done on the beam by the crane? What is the work done by the force of gravity on the beam?

One Response to “What is the work done on the beam by the crane? What is the work done by the force of gravity on the beam?”

  1. TBT  on April 28th, 2013

    the work done on the beam by the crane
    = 1265 * 9.81 * 26 + 1265 * 9.81 * 0
    = 322651 J
    answer

    work done by the force of gravity on the beam
    = 1265 * 9.81 * 26 + 1265 * 9.81 * 0
    = 322651 J
    answer

    Reply


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