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# Exam this afternoon and stuck on this type of problem watch

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1. Q1 from M1 paper: May 2004

A particle of weight W newtons is attached at C to the ends of two light inextensible strings AC and BC. The other ends of the strings are attached to two fixed points A and B on a horizontal ceiling. The particle hangs in equilibrium with AC and BC inclined to the horizontal 30º and 60º respectively. Given that the tension in AC is 50N, calculate

a) the tension in BC

b) the value of W

---

I am at a loss as how to resolve the tension and generally go about this type of question with things hanging at an angle.

Heeeeeeelp....

Jorge
2. (Original post by Jorge)
Q1 from M1 paper: May 2004

A particle of weight W newtons is attached at C to the ends of two light inextensible strings AC and BC. The other ends of the strings are attached to two fixed points A and B on a horizontal ceiling. The particle hangs in equilibrium with AC and BC inclined to the horizontal 30º and 60º respectively. Given that the tension in AC is 50N, calculate

a) the tension in BC
T1cos30=T2cos60
50cos30/cos60=86.6
b) the value of W
50sin30+86.6sin60=w
---=99.997 which is when rounded to 3 significant figures equal 100

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Updated: January 12, 2005
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