Paper 4 October/November 2010 MATHEMATICS (9709/41) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

A car of mass $1250{\text{ }}kg$ travels along a horizontal straight road. The power of the car’s engine is constant and equal to $24{\text{ }}kW$ and the resistance to the car’s motion is constant and equal to $R{\text{ }}N$. The car passes through the point $A$ on the road with speed $20{\text{ }}m{\text{ }}{s^{ - 1}}$ and acceleration $0.32{\text{ }}m{\text{ }}{s^{ - 2}}$.
a) Find the value of $R$.
The car continues with increasing speed, passing…