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A car is moving on a circular road which...

A car is moving on a circular road which is rough and banked at angle . If radius of circular track is R then. Choose correct statement:

A

Friction force will be down the inclined plane if `v gt sqrt(Rg tan theta)`

B

Friction force will be up the inclined plane if `v gt sqrt(Rg)`

C

No friction will act if `v gt sqrt(R g tan theta)`

D

Friction force will be up the inclined plane if `v = sqrt(R g tan theta)`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • In a uniform circular motion, choose correct statement(s):

    A
    Acceleration is constant
    B
    Tangential acceleration is constant
    C
    Centripetal acceleration is constant
    D
    Velocity is constant

  • A car is moving along a circular road at a speed of 20 m//s . The radius of circular road is 10 m. IF the speed is increased at the rate of 30 m//s^2 , what is the resultant acceleration at that moment?

    A
    10`m//s^`
    B
    50`m//s^2`
    C
    250`m//s^2`
    D
    80`m//s^2`

  • A car is moving in a horizontal level of circular track with uniform speed of 10 m/s . If radius of circular path is 50 m then the minimum coefficient of friction to avoid over turning is

    A
    0.3
    B
    0.5
    C
    0.1
    D
    0.2

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