On dry road, the maximum speed of a vehicle along a circular path is ' V '. When the road becomes wet, maximum speed becomes 2 V . If coefficient of friction of dry road is ' μ '

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On dry road, the maximum speed of a vehicle along a circular path is ' V '. When the road becomes wet, maximum speed becomes 2 V ​ . If coefficient of friction of dry road is ' μ ' then that of wet road is

TestHub · Accepted Answer

The equation for maximum velocity is V = μ rg ​ When the road becomes wet the equation becomes 2 V ​ = μ ′ rg ​ Dividing equation (i) with equation (ii), ∴ 2 ∴ μ ′ ​ V V ​ = μ ′ rg ​ μ rg ​ ​ = μ ′ ​ μ ​ ​ = 4 μ ​ ​

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