Paper 4 May/June 2011 MATHEMATICS (9709/42) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

One end of a light elastic string of natural length $0.3{\text{ }}m$ and modulus of elasticity $6{\text{ }}N$ is attached to a fixed point $O$ on a smooth horizontal plane. The other end of the string is attached to a particle $P$ of mass $0.2{\text{ }}kg$, which moves on the plane in a circular path with centre $O$. The angular speed of $P$ is $\omega {\text{ }}rad{\text{ }}{s^{ - 1}}$.
a) For the case $\omega = 5$, calculate the extension of the string.
b)…