Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Two wrenches are used to tighten an elbow fitting. The force ?⃑ = [10 k] lbf on
the right wrench is applied at (6, -5, -3) inches, and the force −?⃑ on the left wrench is applied at
(4, -5, 3) inches.
a) Determine the moment about the x-axis due to the force exerted on the right wrench only.
b) Determine the moment of the couple formed by the forces exerted on both wrenches.
c) Based on the results of (a) and (b), explain why two wrenches are typically used for
tightening fittings.
the right wrench is applied at (6, -5, -3) inches, and the force −?⃑ on the left wrench is applied at
(4, -5, 3) inches.
a) Determine the moment about the x-axis due to the force exerted on the right wrench only.
b) Determine the moment of the couple formed by the forces exerted on both wrenches.
c) Based on the results of (a) and (b), explain why two wrenches are typically used for
tightening fittings.
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