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posted by  faritaa on 3/7/2008 4:33:59 PM  |  status: Live  

Section 9.2 Rigid Objects in Equilibrium

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Question Details:
A 1270 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1930 N crate hangs from the far end of the beam.
(a) Calculate the magnitude of the tension in the wire.
N

(b) Calculate the magnitude of the horizontal and vertical components of the force that the wall exerts on the left end of the beam.
Fx = N
Fy = N
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posted by Airi on 3/7/2008 5:07:45 PM  |  status: Live
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faritaa's comment:
"Thaanx"
Response Details:
1930N*Lcos30 + 1270*L/2 cos30 = Tcos(90 - 50 - 30)L
T = [(1930+(1270/2))cos30]cos10 = 2255.6 N
 
Fx = 2255.6N*cos50 = 1449.9N
 
Fy = 1930 + 1270 - 2255.6*sin50 = 1472.11N
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