Question

Part A The tower crane is used to hoist the 2.2-Mg load constant velocity The 1.6-Mg jib BD, 0 6-Mg jb BC and 5 9-Mg counterweight C have centers of mass at G. G Determine the resultant moment produced by the load and the weights of the tower crane jibs about point A and about point B Figure N m 2.5 m 5

Answer 1

Moment, M = (5900 x 9.8 x 7.5) + (600 x 9.8 x 4) - (1600.x 9.8 x 9.65) - 2200 x 9.8 x 12.5

M = 36358 Nm

Ma, Mb = (36.36, 36.36) kNm

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