The uniform steel beam of mass m and length l is suspended by the two cables at

Question

The uniform steel beam of mass m and length l is suspended by the two cables at A and A. If cable at B suddenly breaks, determine the tension T in the cable at A immediately after the break occurs. Treat the beam as a uniform slender rod and show that the result is independent of the beam's length. the answer should be T=[2sqrt(3)/13]mg=.2665mg I got an answer of .2474mg and don't know why the sgrt(3) is on top.. here's the image. Thanks. I think the key is to take the moment about A first to calculate angular accel. and then moment about the center of mass. http://i.imgur.com/WUAJcfH.jpg

Explanation / Answer

not sure

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