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The coefficent of friction mu and the an...

The coefficent of friction `mu` and the angle of friction `lamda ` are related as

A

`sinlamda=mu`

B

`coslamda=mu`

C

`tanlamda=mu`

D

None of these

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • Angle of friction and angle of repose are

    A
    equal to each other
    B
    not equal to each other
    C
    proportional to each other
    D
    None of the above

  • Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta The angle of friction in the above question is .

    A
    `34^(@)26'`
    B
    `30^(@)`
    C
    `26^(@) 34'`
    D
    `45^(@)`

  • Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta A force of 49N is just able to move a block of wood weighing 10kg on a rough horizontal surface The coefficient of friction is .

    A
    `0.5`
    B
    `4.9`
    C
    `10//49`
    D
    `49//9.8`

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    A ladder whose centre of gravity divides its length in the ratio a : b is in limting equilibrium with its one end on a rough floor (coefficient of friction mu ) and the other end against a rough vertical wall (coefficient of friction mu) .Determine the angle of inclination of the ladder in terms of two angles of friction .

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