A Beginners Torque Physic Question
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A Beginners Torque Physic Question

[From: ] [author: ] [Date: 11-07-04] [Hit: ]
8 m from O; FB = 15 N at point B, 2.4 m from O; and FC = 23 N at point C, 3.0 m from O. Taking the clockwise direction to be negative,......
The body in Fig. 10-37 is pivoted at O. Three forces act on it in the directions shown: FA = 8.8 N at point A, 9.8 m from O; FB = 15 N at point B, 2.4 m from O; and FC = 23 N at point C, 3.0 m from O. Taking the clockwise direction to be negative, what is the net torque about O?

Please combine the link for the image:
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**My answer is 27.3408Nm
**And it's wrong.
**Why????

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Magnitude of Torque is defined : τ = r*F* sin α
--> τo = τA + τB + τC
= (9.8*8.8* sin 135) + (-2.4*15* sin 90) + (3*23* sin 150) = 59.48 Nm
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