Paper 5 October/November 2009 MATHEMATICS (9709/52) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

A smooth hemispherical shell, with centre $O$, weight $12{\text{ N}}$ and radius $0.4{\text{ }}m$, rests on a horizontal plane. A particle of weight $W{\text{ N}}$ lies at rest on the inner surface of the hemisphere vertically below $O$.
A force of magnitude $F{\text{ N}}$ acting vertically upwards is applied to the highest point of the hemisphere, which is in equilibrium with its axis of symmetry inclined at ${20^ \circ }$ to the horizontal (see diagram).
a)…