Homework Help: Physics

Posted by tionne on Tuesday, November 13, 2012 at 11:34pm.

crane lifts a 75 kg girder 8.85 m. How much work does the crane do lifting with an upward acceleration of 1.20 m/s ^2?

Physics - just walked by, Tuesday, November 13, 2012 at 11:41pm
A=m(g+a)h=75(9.8+1.2)*8.85=7,301.25Joules

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