The minimum and maximum distances of a planet revolving around the Sun are $x_{1}$ and $x_{2}$. If the minimum speed of the planet on its trajectory is $v_{0}$, then its maximum speed will be:\\
(1) $\frac{v_{0} x_{1}^{2}}{x_{2}^{2}}$\\
(2) $\frac{v_{0} x_{2}^{2}}{x_{1}^{2}}$\\
(3) $\frac{v_{0} x_{1}}{x_{2}}$\\
(4) $\frac{v_{0} x_{2}}{x_{1}}$