A simple pendulum of length $l$ and mass $m$ of the bob is suspended in a car that is travelling with a constant speed $v$ around a circular path of radius $R$. If the pendulum undergoes oscillations with small amplitude about its equilibrium position, the frequency of its oscillations will be
Diffcult
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$\because g_{e f f}=\sqrt{g^{2}+\left(\frac{v^{2}}{R}\right)^{2}}$
$T=2 \pi \sqrt{\frac{\ell}{\sqrt{g^{2}+\frac{v^{4}}{R^{2}}}}}$
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