The tower crane is used to hoist the 2.1-Mg load upward at constant velocity. The 1.3-Mg jib BD, 0.9-Mg jib BC, and 6.5-Mg counterweight C have centers of mass at G1, G2, and G3, respectively. Determine the resultant moment in kN-m produced by the load and the weights of the tower crane jibs about point B. ( in kN.m and assume counterclock wise as positive, clockwise as negative) 4 m 9.5m G G 7.5 m 12.5 m 23 m

The tower crane is used to hoist the 2.1-Mg load upward at constant velocity. The 1.3-Mg jib BD, 0.9-Mg jib BC, and 6.5-Mg counterweight C have centers of mass at G1, G2, and G3, respectively. Determine the resultant moment in kN-m produced by the load and the weights of the tower crane jibs about point B. ( in kN.m and assume counterclock wise as positive, clockwise as negative) 4 m 9.5m G G 7.5 m 12.5 m 23 m

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter2: Basic Operations With Force Systems

Section: Chapter Questions

Problem 2.54P: To lift the table without tilting, the combined moment of the four parallel forces must be zero...

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