Problem 1-11/ Engineering Mechanics Materials.

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Engineering Mechanics Problem Solving.

The forearm and biceps support the 2-kg load at A . If C can be assumed as a pin support, determine the resultant internal loadings acting on the cross section of the bone of the forearm at E. The biceps pulls on the bone along BD.
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For solving for sum of forces in Y, I think it is supposed to be F(BD)*sin(75)-W-C(y)=0

HerrSchmidt
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may i ask how can you determine if the rotation of angle is sin or cosine?

notjustdecimus