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A block weighing 5 kg is pressed against...

A block weighing 5 kg is pressed against a verticalk wall by a normal force of 150 N the coefficient of friction along being 0.5 . Find the force required to cause the block to move (a) horizontally, (b) vertically upward, (c) vertically downwards.

Text Solution

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The correct Answer is:
(a) 75 N (b) 224 N (c) 26 N
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Knowledge Check

  • A block of weight 5 N is pushed against a vertical wall by a force 12 N . The coefficient of friction between the wall and block is 0.6 . Find the magnitude of the force exerted by the wall on the block :

    A
    12 N
    B
    13 N
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    17 N
    D
    16 N

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    A
    `0.4`
    B
    `0.2`
    C
    `0.5`
    D
    none of these

  • A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N . The coefficient of friction between wall and body is 0.3. Then the frictional force is equal to

    A
    2 N
    B
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    50 N
    D
    100 N

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