I have one question about the balancing force. Please help.(adsbygoogle = window.adsbygoogle || []).push({});

Find the tension (T1, T2) of each string. Please see the figure.

My answer:

Set T2 as pivot.

30 * 0.2 = 20 * 0.3 + 20 * 0.6 - T1 * 0.4, solve for T1

Set T1 as pivot.

30 * 0.6 - T2 * 0.4 + 20 * 0.1 = 20 * 0.2, solve for T2

If any problem with my answer, please tell.

Now, if the breaking tension of each string is 50 N, find what weight of A should be when one of the strings breaks. State which string will break first and why?

Don't know how to solve and explain. Please give me some help.

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# Homework Help: Balancing force

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