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A force of 49 N is just sufficient to pu...

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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A force of 98N is just able to move a body of weight 45kg on a rough horizontal surface What are the coefficient of friction and angle of friction ? .

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 ?

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`

  • 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`

  • A block of weight 100N is lying on a rough horizontal surface.If coefficient of friction 1/sqrt3 .The least possible force that can move the block is

    A
    `100/sqrt3N`
    B
    `100sqrt3 N`
    C
    `50sqrt3 N`
    D
    `50N`

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