A large truck has an essentially boxlike body that causes flow separation at the front edges of the cab at any speed. The drag is mostly profile drag and \(C_{D}=0.75\). If the projected frontal area of the truck is \(9 \mathrm{~m}^{2}\), determine and plot as a function of speed between zero and the legal limit the power that must be delivered to the road to propel the truck.