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Questions  

A motorcyclist riding at 36 kmh-1 has to turn a corner. Find the least radius of the curve, he should
follow for safe travelling, if the coefficient of friction between the tyres and the road is 0.2. 

a
10 m
b
25 m
c
50 m
d
100 m

detailed solution

Correct option is C

For safe circular turn,  v=μrg⇒  r=v2μg⇒r=(10)20.2×10=50 m

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