- #1
NikkiNik
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Homework Statement
A mass M=171 kg is suspended from the end of a uniform boom as shown. The boom (mass=83.0 kg, length=2.40 m) is at an angle θ=69.0 deg from the vertical, and is supported at its mid-point by a horizontal cable and by a pivot at its base. Calculate the tension in the horizontal cable.
http://i32.photobucket.com/albums/d2/NikkiNik88/staticsboom.gif
Homework Equations
T=rsin(theta)
The Attempt at a Solution
Theta = 69 deg, alpha=21 deg
mg(L/2)cos(theta) + Mg(L)cos(theta) + T(L/2)sin(alpha) = 0
When I solved for T I got 4169.25N but that is incorrect please help