A person with his hand in his pocket is skating on ice at the rate of $10 m / s$ and describes a circle of radius $50 m$. What is his inclination to vertical: $\left( g =10 m / sec ^2\right)$
A person with his hand in his pocket is skating on ice at the rate of $10 m / s$ and describes a circle of radius $50 m$. What is his inclination to vertical: $\left( g =10 m / sec ^2\right)$
- A
$\tan ^{-1}\left(\frac{1}{2}\right)$
- B
$\tan ^{-1}(1 / 5)$
- C
$\tan ^{-1}(3 / 5)$
- D
$\tan ^{-1}(1 / 10)$
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