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can anyone shed some light on this for me ?

  • 21-04-2009 9:54pm
    #1
    subzero12
    Closed Accounts Posts: 96 ✭✭


    the equation is

    h(40) = (.00001)(208953000)/(1000)(9.81)-((.00001)(208953000)/(1000)(9.81)-.092)e^-(1000)(9.81)/(208953000)(.02043)(40)

    apparently the answer when worked comes to .103m but i doesnt seen to work for me! can anyone get it
    thanks for any help in advace


Comments

  • #2
    Thomas_S_Hunterson
    Closed Accounts Posts: 6,151 ✭✭✭Thomas_S_Hunterson


    Could you post a scan or a screen cap of the equation or do it up in latex or something?

    As it stands it's hard to make sense of it

    /edit: I take it h is a function?

    Judging by the 9.81s this may be more suited to Physics


  • #3
    ZorbaTehZ
    Registered Users, Registered Users 2 Posts: 2,149 ✭✭✭ZorbaTehZ


    I'm getting 0.213-(0.121)(0.9999) which works out at 0.092... could be doing it wrong though.


  • #4
    Fremen
    Registered Users, Registered Users 2 Posts: 2,481 ✭✭✭Fremen


    The way you've written it is ambiguous. For example,

    (1000)(9.81)/(208953000)(.02043)(40)

    could mean (1000)(9.81) (divided by) (208953000)(.02043)(40)
    or ((1000)(9.81) divided by (208953000)) (multiplied by) (.02043)(40)

    if you copy and paste into a calculator, it will normally assume the latter.

    In general, a/bc is understood by computers to mean (a/b)*c = ac/b
    This could be where you're going wrong.


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