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 particle $P$ has weight $10{\text{ }}N$ and is in limiting equilibrium on a rough horizontal table. The forces shown in the diagram represent the weight of $P$, an applied force of magnitude $4{\text{ }}N$ acting on $P$ in a direction at ${30^ \circ }$ above the horizontal, and the contact force exerted on $P$ by the table (the resultant of the frictional and normal components) of magnitude $C{\text{ }}N$.
a) Find the value of $C$.
b) Find the coefficient…