A car is running on a highway turning having a curved track of radius 145 m banked at an…
Physics · JEE Main · NTA Exams — Laws of Motion
A car is running on a highway turning having a curved track of radius 145 m banked at an angle of \(11.5^{\circ}\) .Taking the coefficient of friction between the wheels and the road as 0.2. Determine the approximate ratio of
- the optimum speed, least effecting wear and tear of tyres.
- the maximum speed permissible without skidding.
[Given: tan(11.5°) = 0.2]
- \(\frac{2}{3}\)
- \(\frac{4}{7}\)
- \(\frac{5}{7}\)
- None
Answer
(C) 5 7
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