A car and a truck travel in a straight line starting at the same point P. The distance of the car from the starting point P is given as a function of time by $x_c(t) = at + bt^2$, with $a = 2.00 \text{ m/s}$ and $b = 4.00 \text{ m/s}^2$. The distance of the truck from the starting point P is $x_r(t) = ct$, with $c = 5.3 \text{ m/s}$. What is their distance to the starting point P when they meet again? Give your answer in m
