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 small smooth pulley is fixed at the highest point $A$ of a cross-section $ABC$ of a triangular prism. Angle $ABC = {90^ \circ }$ and angle $BCA = {30^ \circ }$. The prism is fixed with the face containing $BC$ in contact with a horizontal surface. Particles $P$ and $Q$ are attached to opposite ends of a light inextensible string, which passes over the pulley. The particles are in equilibrium with $P$ hanging vertically below the pulley and $Q$ in contact with $AC$. The resultant force…