Paper 4 October/November 2008 MATHEMATICH (9709/4) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

A smooth bead $B$ of mass $0.3{\text{ }}kg$ is threaded on a light inextensible string of length $0.9{\text{ }}m$. One end of the string is attached to a fixed point $A$, and the other end of the string is attached to a fixed point $C$ which is vertically below $A$. The tension in the string is $T{\text{ }}N$, and the bead rotates with angular speed $\omega {\text{ }}rad{\text{ }}{s^{ - 1}}$ in a horizontal circle about the vertical axis through $A$ and $C$.
a) Given…