Multiple Choice
A light triangular plate OAB is in a horizontal plane.Three forces,
and
act on the plate,which is pivoted about a vertical axes through point O.In the figure,
2 is perpendicular to OB.Consider the counterclockwise sense as positive.The sum of the torques about the vertical axis through point O,acting on the plate due to forces F1,F2,and F3,is closest to 
A) 4.1 N ∙ m.
B) 5.4 N ∙ m.
C) -4.1 N ∙ m.
D) -5.4 N ∙ m.
E) zero.
Correct Answer:

Verified
Correct Answer:
Verified
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