A) \[20{}^\circ \]
B) \[30{}^\circ \]
C) \[45{}^\circ \]
D) \[60{}^\circ \]
Correct Answer: C
Solution :
A motor cyclist provides himself the necessary centripetal force by leaning inward on a horizontal track, while going round a curve. For a safe turn cyclist should bend through an angle \[\theta ={{\tan }^{-1}}\left[ \frac{{{v}^{2}}}{rg} \right]={{\tan }^{-1}}\left[ \frac{{{(20)}^{2}}}{40\times 10} \right]\] \[={{\tan }^{-1}}(1)={{45}^{o}}\]You need to login to perform this action.
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