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What is the maximum speed with whi...

What is the maximum speed with which a car safely turn a around a curved horizontal road of radius 50 m ? [The coefficient of friction between the tyres and the surface of the road is 0.4 ]

A

`7 m//s`

B

`14 m//s`

C

`21 m//s`

D

`28 m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
`v^(2) = mu rg = 0.4 xx50xx9.8 =196 " " therefore v= 14 m//s`
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Find the maximum speed at which a car can take turn round a curve of 30 cm radius on a level road if the coefficient of friction between the tyres and the road is 0.4. Take g = 10 ms^(-2) .

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Knowledge Check

  • The maximum speed of a car which can be safely driven along a curve of radius 10 m , If the coefficient of friction between the tyres and the road is 0.5, is (g=9.8 m//s^(2))

    A
    `7 m//s`
    B
    `14 m//s`
    C
    `49 m//s`
    D
    `21 m//s`

  • What is the maximum speed at which a car can turn round a curve of 30 m radius on a level road if the coefficient of friction between the types and the road is 0.4 .(Given, acceleration due to gravity = 10 ms ^(-2)

    A
    `12ms^(-1)`
    B
    `10ms^(-1)`
    C
    `11ms^(-1)`
    D
    `15ms^(-1)`

  • What would be the maximum speed of a car on a road turn of radius 30 m, if the coefficient of fraction between the types and the road is 0.4 ?

    A
    `6.84 m//s`
    B
    `8.84 m//s`
    C
    `10.84 m//s`
    D
    `4.84 m//s`

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    Find the maximum speed at which a car can turn round a curve of 30 m radius on a level road if coefficient of friction between the tyress and road is 0.4. Take g = 10 m//s^(2) .

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