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    morribj's Avatar
    morribj Posts: 2, Reputation: 1
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    #1

    Feb 21, 2007, 07:32 PM
    Magnitude of P
    A block of mass m is pushed up against a wall by a force P that makes an angle theta with the horizontal. The coefficient of static friction between the block and the wall is mu*s. Determine the possible values for the magnitude P that allows the block to remain stationary.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #2

    Feb 23, 2007, 01:49 AM
    Here you need to understand:

    The frictional force will be equal to the coefficient of friction times the force perpendicular to the wall.
    And
    If the force parallel to the wall is greater than the frictional force, the block will move.

    Can you apply these to reach an answer?

    If you get stuck, please let me know so I can guide you further.
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