The tower crane is used to hoist the 1

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The tower crane is used to hoist the 1.8-Mg load upward at constant velocity. The 1.3-Mg jib BD, 0.4-Mg jib BC, and 6.0-Mg counterweight C have centers of mass at G1, G2, and G3, respectively. (Figure 1)

Part A

Determine the resultant moment produced by the load and the weights of the tower crane jibs about point A and about point B.

Express your answers using three significant figures separated by a comma.