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A cubical block rests on a plane rough s...

A cubical block rests on a plane rough surface with coefficient of static friction `(1)/(sqrt(3))`. AT what angle the plane be inclined so that the block just slides?

A

`60^(@)`

B

`20^(@)`

C

`30^(@)`

D

`15^(@)`

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Knowledge Check

  • A body of mass 2 kg rests on a rough inclined plane making an angle of 30^(@) with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is :

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    C
    `0.7 xx 9.8 N`
    D
    `0.7 xx 9.8 xx 3N`

  • A block rests on a rough inclined plane making an angle of 30 ^@ with the horizontal . The coefficient of static friction between the block and the plane is 0.8 If the frictional force on the block is 10 N the mass of the block is " "(g=10 ms ^(-2))

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