Concept explainers
Three coplanar concurrent forces act as shown.
a. Calculate the moment of each force about point O that lies in the line of action of the F1 force.
b. Calculate the algebraic summation of the three moments about point O and determine the sense of the moment sum.
c. Calculate the magnitude of the resultant and angle of inclination with the X axis.
d. Compute the moment of the resultant about point O and compare with the result of part (b).
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