The tower crane is used to hoist the 2-Mg load upward at constant velocity. The 1.5-Mg jib
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The tower crane is used to hoist the 2-Mg load upward at constant velocity. The 1.5-Mg jib BD, 0.5-Mg jib BC, and 6-Mg counterweight C have centers of mass at G1 , G2 , and G3 , respectively. Determine the resultant moment produced by the load and the weights of the tower crane jibs about point A and about point B.
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4 m- 9.5m c G3F 7.5 m -12.5 m 23 m
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