4–72 Force System Resultants (Chapter 4: Hibbeler Statics) Benam Academy

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ENGINEERING MECHANICS - STATICS, 13TH EDITION, R. C. HIBBELER
CHAPTER 4: Force System Resultants
PROBLEM: F4-1
*4–72. Friction on the concrete surface creates a couple moment of MO = 100 N # m on the blades of the trowel. Determine the magnitude of the couple forces so that the resultant couple moment on the trowel is zero. The forces lie in the horizontal plane and act perpendicular to the handle of the trowel.
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