(Solved): Radial and Transverse Components for Plane Motion An airplane's path is tracked by radar using the ...

Radial and Transverse Components for Plane Motion An airplane's path is tracked by radar using the distance $$r(t)$$ and angular elevation $$?(t)$$ functions given below $$(r$$ measured in $$\mathrm{km},?$$ measured in radians, $$\mathrm{t}$$ in seconds). At $$t=5\mathrm{s}$$, what is the speed of the aircraft? Clue Using $$r??$$ coordinates, $$v(t)={}^{?}rer+r^{?}$$ ep (see reference handbook for formula) $$\begin{array}{r}2300\mathrm{km}/\mathrm{h}\\ 1800\mathrm{km}/\mathrm{h}\\ 1300\mathrm{km}/\mathrm{h}\\ 1100\mathrm{km}/\mathrm{h}\end{array}$$