Paper 5 May/June 2003 MATHEMATICH (9709/5) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

A light elastic string has natural length $2{\text{ }}m$ and modulus of elasticity $\lambda {\text{ }}N$. The ends of the string are attached to fixed points $A$ and $B$ which are at the same horizontal level and $2.4{\text{ }}m$ apart. A particle $P$ of mass $0.6{\text{ }}kg$ is attached to the mid-point of the string and hangs in equilibrium at a point $0.5{\text{ }}m$ below $AB$ (see diagram).
a) Show that $\lambda = 26$.
$P$ is projected vertically…