A convertible travels down a straight, level road at a slow speed of \(13 \mathrm{~km} / \mathrm{h}\). A person in the car throws a ball with a speed of \(3.6 \mathrm{~m} / \mathrm{s}\) forward at an angle of \(30^{\circ}\) above the horizontal, relative to the car. Where is the car when the ball lands?