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    johnblacc's Avatar
    johnblacc Posts: 1, Reputation: 1
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    #1

    Dec 16, 2013, 09:13 AM
    Physics help
    A uniform beam of 6 m length and 300 n weight supports a 400 n load as shown below. Determine the tension in the supporting wire and the force exerted by the pivot on the beam.
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    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Dec 16, 2013, 09:18 AM
    Obviously the figure you tried to include in your post didn't load properly. But in any event - typically these kinds of problems require you to solve three equations in three unknowns: horizontal reaction forces sum to zero, vertical reaction forces sum to zero, and moments sum to zero. First thing to do is draw a free body diagram. The only "trick" is figuring out what point to caculate moments about - if there's a hinge at one end of the beam that's a good place to start.
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