A cyclist is travelling with velocity $v$ on a curved road of radius $R$. The angle $\theta$  through which the cyclist leans inwards is given by
  • A$\tan \theta  = \frac{{Rg}}{{{v^2}}}$
  • B$\tan \theta  = {v^2}Rg$
  • C$\tan \theta  = \frac{{{v^2}g}}{R}$
  • D$\tan \theta  = \frac{{{v^2}}}{{Rg}}$
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