Question: Four coplanar concurrent forces act as shown. F 1 = 3 0 l b , F 2 = 4 0 l b , F 3

Four coplanar concurrent forces act as shown. F1=30lb,F2=40lb,F3=10lb,F4=50lb.
a. Calculate the moment of each force about point O.
b. Calculate the algebraic summation of the four moments about point O and determine the sense of rotation.
(a)M1=
lb .ft
M2=
lb*ft
lb*ft
M3=
Im
4
Four coplanar concurrent forces act as shown. F 1

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