A motorcyclist riding at 36 kmh-1 has to turn a corner. Find the least radius of the curve, he shouldfollow for safe travelling, if the coefficient of friction between the tyres and the road is 0.2.
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a
10 m
b
25 m
c
50 m
d
100 m
answer is C.
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Detailed Solution
For safe circular turn, v=μrg⇒ r=v2μg⇒r=(10)20.2×10=50 m