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Q.

For traffic moving at 60 km/ hour along a circular track of radius 0⋅1 km, the correct angle of banking is

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a

(60)2/0⋅1km

b

tan−1⁡(50/3)2100×9⋅8

c

tan−1⁡100×9⋅8(50/3)2

d

tan−1⁡(60×0⋅1×9⋅8)

answer is B.

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Detailed Solution

θ=tan−1⁡V2rgHere    V=60×10360×60=(50/3)r=0⋅1km=100m  and  g=9⋅8m/sec2∴ θ=tan−1⁡(50/3)2100×9⋅8
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