Paper 5 October/November 2010 MATHEMATICS (9709/53) 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 $0.5{\text{ }}m$ and modulus of elasticity $12{\text{ }}N$ is attached to a fixed point $O$. The other end of the string is attached to a particle $P$ of mass $0.24{\text{ }}kg$. $P$ is projected vertically upwards with speed $3{\text{ }}m{\text{ }}{s^{ - 1}}$ from a position $0.8{\text{ }}m$ vertically below $O$.
a) Calculate the speed of the particle when it is moving upwards with zero acceleration.
b)…