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If the banking angle of a curved road is...

If the banking angle of a curved road is given by `tan^(-1)` (3/5) and the radius of the road is 6m, then the safe driving speed should not exceed-

A

21.6 km/hours

B

30.4 km/hours

C

43.2 km/hours

D

86.4 km/hours

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The correct Answer is:
A
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