Physics Help Forum really simple, system in equilibrium (weight and tension in light string)

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 Mar 5th 2012, 10:51 PM #1 Member   Join Date: Mar 2010 Posts: 40 really simple, system in equilibrium (weight and tension in light string) A small smooth ring R of mass 0.1 kg is threaded on a light string. The ends of the string are fastened to two fixed points A and B. The ring hangs in equilibrium with the part AR of the string inclined at 40° to the horizontal, as shown in the diagram. Show that the part RB of the string is also inclined at 40° to the horizontal and find the tension in the string. I have no difficulties with the second question, namely finding the tension in the string, but although it seems obvious to me that RB should be inclined at 40° to the horizontal, I’m at a loss to prove why in the most coherent way possible. I would be grateful for an outline on how to prove this concisely and effectively. Cheers Attached Thumbnails
 Mar 6th 2012, 11:58 PM #2 Physics Team     Join Date: Jun 2010 Location: Mauritius Posts: 609 Already answered under really simple, system in equilibrium (weight and tension in light string)) __________________ Jerry (Got my results!) It is easier to protect your feet with slippers than to cover the earth with carpet. No one can go back and change a bad beginning; but anyone can start now and create a successful ending. If a problem can be solved, no need to worry about it. If it cannot be solved what is the use of worrying?

 Tags equilibrium, light, simple, string, system, tension, weight

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