Q.

The coefficient of friction between the tires and the road is 0.1. The maximum speed with which a cyclist can take a circular turn of radius 3 m without skidding is (Take g = 10m s-2

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a

15 m s-1

b

10 m s-1

c

3 m s-1

d

30 m s-1

answer is B.

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Detailed Solution

Here, r=3 m, μ=0.1, g=10 m s-2

The maximum speed with which a cyclist can take a turn without skidding is 

     =μrg =0.1×(3 m)×(10 m s-2) =3 m s-1

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