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A block moving on an inclined plane making an angle `45^(@)` with the horizontal and the coefficient of friction is `mu` the force required to just push it up the inclined plane is three times the force required to just prevent it from sliding down. If we define `N=10 mu N` then N is

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A block is moving on an inclined plane making an angle 45^(@) with the horizontal and the coefficient of friction is mu . The force required to just push it up the inclined plane is 3 times the force required to just prevent it from sliding down . If we define N = 10 mu , then N is :

A block is moving on an inclined plane making an angle 45^@ with the horizontal and the coefficient of friction is mu . The force required to just push it up the inclined plane is 3 times the force required to just prevent it from sliding down. If we define N=10mu , then N is

Knowledge Check

  • A brick of mass 2kg just begins to slide down on inclined plane at an angle of 45^(@) with the horizontal. The force of friction will be

    A
    `19.6 sin 45^(@)`
    B
    `19.6cos45^(@)`
    C
    `9.8sin 45^(@)`
    D
    `9.8cos 45^(@)`

  • A brick of mass 2kg begins to slide down on a plane inclined at an angle of 45^(@) with the horizontal. The force of friction will be

    A
    `19.6sin45^(@)`
    B
    `19.6cos45^(@)`
    C
    `9.8sin45^(@)`
    D
    `9.8cos45^(@)`

  • A block of mass m slides down an inclined plane which makes an angle theta with the horizontal. The coefficient of friction between the block and the plane is mu . The force exerted by the block on the plane is

    A
    `mg cos theta`
    B
    `sqrt(mu^(2) + 1) mg cos theta`
    C
    `(mumg cos theta)/(sqrt(mu^(2) + 1))`
    D
    `mumg theta`

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