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Quadratic formula

  1. Oct 13, 2009 #1
    Using the quadratic formula, solve the distance:

    x= distance needed to solve (also our y value in the formula)

    A= .5*k

    B= -m*g*sin(30)

    C= -m* g* d*sin(30)

    Where:
    k= 3000
    m= 5
    g=9.81
    d=1.3

    I get 48.13, but it says that im wrong. what does everyone else get?
     
  2. jcsd
  3. Oct 13, 2009 #2

    Mark44

    Staff: Mentor

    I can't see that what you've posted makes any sense. The distance from what to what? How are A, B, and C related to x? What is y in your formula? What formula?

    Please post the exact problem description.
     
  4. Oct 14, 2009 #3

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    You title this "quadratic formula" and say "Using the quadratic formula" but there is NO quadratic formula in your post.

    You say "x= distance needed to solve (also our y value in the formula)" and then give a list of formulas and values, none of which mention "x" or "y"!

    WHAT is the question, really?
     
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