Paper 4 May/June 2011 MATHEMATICS (9709/43) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

The diagram shows three particles $A$, $B$ and $C$ hanging freely in equilibrium, each being attached to the end of a string. The other ends of the three strings are tied together and are at the point $X$. The strings carrying $A$ and $C$ pass over smooth fixed horizontal pegs ${P_1}$ and ${P_2}$ respectively. The weights of $A$, $B$ and $C$ are $5.5{\text{ }}N$, $7.3{\text{ }}N$ and $W{\text{ }}N$ respectively, and the angle respectively, and the angle ${P_1}X{P_2}$ is a right angle.…