Paper 4 May/June 2009 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.
$O$ and $A$ are fixed points on a horizontal surface, with $OA = 0.5{\text{ }}m$. A particle $P$ of mass $0.2{\text{ }}kg$ is projected horizontally with speed $3{\text{ }}m{\text{ }}{s^{ - 1}}$ from $A$ in the direction $OA$ and moves in a straight line (see diagram). At time $t\,s$ after projection, the velocity of $P$ is $vm{\text{ }}{s^{ - 1}}$ and its displacement from $O$ is $x{\text{ m}}$.
The coefficient of friction between the surface and $P$ is $0.5$, and…