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Can the coefficent of friction be more...

Can the coefficent of friction be more than one

Text Solution

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Yes. The coefficient of friction can be more than one in some cases such as silicone rubber. Coefficient of friction is the ratio of frictional force to normal force. i.e., `F = mu R` . If `mu` is greater than one means frictional force is greater than normal force. But in general case the value is usually between 0 and 1.
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Knowledge Check

  • A body of mass m slides down a rough plane of uinclination alpha if mu is the coefficent of friction then acceleratio of the body will be

    A
    `g sin alpha`
    B
    `mu cos alpha`
    C
    `g (sin alpha-mucos alpha)`
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    `g(cos alpha -mu sin alpha)`

  • A body of mass m slides down a rough plane of uinclination alpha if mu is the coefficent of friction then acceleratio of the body will be

    A
    `g sin alpha`
    B
    `mu cos alpha`
    C
    `g (sin alpha-mucos alpha)`
    D
    `g(cos alpha -mu sin alpha)`

  • An object placed on an inclined plane starts sliding when the angle of incline becomes 30^(@) the coefficent of statyic friction between the object and the plane is

    A
    `(1)/sqrt(3)`
    B
    `sqrt(3)`
    C
    `1/2`
    D
    `sqrt(3)/(2)`

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