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    ukiecutie13's Avatar
    ukiecutie13 Posts: 4, Reputation: 1
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    #1

    Nov 17, 2007, 07:57 PM
    Acceleration and weight in newtons
    2.26 kg book is dropped from 1.5 m. What is the acceleration?
    What is the weight in newtons?
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #2

    Nov 17, 2007, 08:35 PM
    A clue: the height it's dropped from doesn't matter.

    What do you think the answers are?
    ukiecutie13's Avatar
    ukiecutie13 Posts: 4, Reputation: 1
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    #3

    Nov 17, 2007, 09:00 PM
    I have no idea...
    What formulas would solve the two questions?
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #4

    Nov 17, 2007, 09:15 PM
    For the first one you don't need a formula. For the second one, F=ma.
    ukiecutie13's Avatar
    ukiecutie13 Posts: 4, Reputation: 1
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    #5

    Nov 17, 2007, 09:26 PM
    Is the acceleration for the first one 9.81? Since its at free fall?
    enigmagnetic's Avatar
    enigmagnetic Posts: 333, Reputation: 45
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    #6

    Nov 17, 2007, 09:43 PM
    Yes. Acceleration near earth is indeed 9.81 m/s. Newtons are the SI equivalent of pounds to the American system. We are just so hard headed and refuse to adopt another system.
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