A 3.10-m-long, 340 k g steel beam extends horizontally from the point where it h

ID: 2240278 • Letter: A

Question

A 3.10-m-long, 340kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 65.0kgconstruction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted into place? A 3.10-m-long, 340kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 65.0kgconstruction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted into place?

Explanation / Answer

Torque = MgL/2 + mgL

= 340*9.8*3.10/2 + 65*9.8*3.10

= 7139.3 N.m

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A 3.10-m-long, 340 k g steel beam extends horizontally from the point where it h

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