A car moving with a speed of 54 km/h takes a turn of radius 20 m. A simple pendulum is suspended from the ceiling of the car. Determine the angle made by the string of the pendulum with the vertical during the turning. (Take $$g = 10$$ m/s$$^2$$)

A

$$\tan^{-1}(0.5)$$

B

$$\tan^{-1}(0.75)$$

C

$$\tan^{-1}(1.125)$$

D

$$\tan^{-1}(0.25)$$