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A force ofv 3kg wt is just sufficient to...

A force ofv `3kg` wt is just sufficient to pull a block of `4kg` over a horizontal surface .What is the angle of friction ?

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The correct Answer is:
`36^(@)52`
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A force of 49 N is just sufficient to pull a block of wood weighing 10 kg on a rough horizontal surface. Calculate the coefficient of friction and angle of friction.

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Knowledge Check

  • A force of 49 N just able to move a block of wood weighing 10 kg on a rough horizontal surface , then coefficient of friction is

    A
    `1/2`
    B
    `1/4`
    C
    `1/6`
    D
    `1/8`

  • A wooden block of mass 100 Kg is kept on a horizontal platform. A force of 60 N is required to just slide the block. But a force of 49N is just sufficient to keep the block.moving with uniform velocity. What is the coefficient of kinetic friction?

    A
    0.5
    B
    0.25
    C
    0.05
    D
    0.005

  • A horizontal force of 129.4 N is applied on a 10 kg block which rests on a horizontal surface. If the coefficient of friction is 0.3, the acceleration should be

    A
    `9.8m//s^(2)`
    B
    `10m//s^(2)`
    C
    `12.6m//s^(2)`
    D
    `19.6m/s^(2)`

    • Similar Questions

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    A force of 98 N is just required to move a mass of 45 kg on a rough horizontal surface. Find the coefficient of friction and angle of friction ?

    A force of 10N is acting on a block of 20kg on horizontal surface with coefficient of friction mu=0.2 . Calculate the work done by the force.

    A horizontal force of 1.2kg is applied on a 1.5kg block, which rests on a horizontal surface If the coefficient of friction is 0.3 find the acceleration produced in the block.

    A rectangular block of mass 5 kg is kept on a horizontal surface . The coefficient of friction between the block and the surface is 0.2 . If a force of 20 N is applied to the block at angle of 30^(@) with the horizontal plane , what is the force of friction on the block ? (Take g = 10 m//s^(2) )

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