A car travels on a circular racetrack of radius \(50\,\text{m}\), which is banked at an angle \(\theta\).
If the car travels at a speed \(10\,\text{m s}^{-1}\), then the wear and tear on its tyres is minimum.
Taking \(g=10\,\text{m s}^{-2}\), the value of \(\theta\) is: