When the road is dry and the coefficient of friction is µ, the maximum speed of a car in…

Physics · JEE Main · NTA ExamsRotational Motion

When the road is dry and the coefficient of friction is µ, the maximum speed of a car in a circular path is 10 m/s, if the road becomes wet and µ’ = µ/2. What is the maximum speed permitted ?
  1. 5 m/s
  2. 10 m/s
  3. 10 \(\sqrt{2}\) m/s
  4. 5\(\sqrt{2}\) m/s

Answer

(D) 5 2 m/s

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