Question

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

Options :

  1. 5 m / s

  2. 5 m / s

  3. 10√2 m / s

  4. 5√2 m / s

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Answer :

5√2 m / s

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