1.) A uniform rod AB is 1.2 m long and weighs 16 N. It is suspended by vertical strings AC and BD. A block P weighing 96 N is attached at E, .3 m from A. The tension in the string BD is?(adsbygoogle = window.adsbygoogle || []).push({});

http://img116.exs.cx/img116/2822/STATICS1.jpg

I did:

(.3m)(96N)+ (.9m)(16N) - (1.2 m)(x) = 0

x=36N

But the answer is 32 N

What did I do wrong??

2.) A 960 N block is suspended as shown. The beam is weightless and is hinged to the watt at A. The tensions in the cable BC is?

http://img116.exs.cx/img116/364/statics2.jpg

I did:

(4m)(960N)=t

t=3840

The answer is 1600 N.

~Thanks

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# Homework Help: Cable tension statics problem

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