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    trainrider's Avatar
    trainrider Posts: 3, Reputation: 1
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    #1

    Nov 10, 2012, 12:09 PM
    Imagine an eraser, standing on edge, on the ledge of a chalkboard. You are on earth a
    List all the frces acting on the eraser with respect to Newtons 1 and 2 Laws.
    trainrider's Avatar
    trainrider Posts: 3, Reputation: 1
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    #2

    Nov 10, 2012, 12:10 PM
    The question was truncated. The earth is motionless in fixed space
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #3

    Nov 10, 2012, 12:22 PM
    What do YOU think ?
    While we're happy to HELP we won't do all the work for you.
    Show us what you have done and where you are having problems..
    trainrider's Avatar
    trainrider Posts: 3, Reputation: 1
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    #4

    Nov 10, 2012, 12:29 PM
    OK gravity is a force acting on it
    And I understand Newtons laws applying to this a
    The eraser will stay there until acted upon by something else.
    But does the ledge play a part... is it a force? I mean if the moleculed inside me are a force at equilibrium with outside pressure? I fear I am overthinking this. Pleasr help
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