Homework Help: physics

Posted by lulu on Wednesday, January 21, 2009 at 7:40pm.

a 10-m uniform beam of weight 100N is supported by two ropes at the ends. If a 400N erson sits at 2.0 m from the left end of the beam, what is the tension in the right rope?

physics - bobpursley, Wednesday, January 21, 2009 at 7:53pm
Sum the moments about any point. I will do it from the left end.

100N*5m+400N*2m-Tright*10=0
solve for Tright.

Now, sum the forces vertically.

Tleft+Tright-100N-400N=0 solve for Tleft.

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