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What is the magnitude of the spring force given M,K and X

  1. Mar 23, 2015 #1
    1. The problem statement, all variables and given/known data
    1.In a game a .12kg disk is shot across a frictionless surface . The spring is compressed by 6cm. The spring constant is 230 N/m. What is the magnitude of the spring force?

    2. A piece of plastic is attached to a spring. The spring is compressed 2cm and the released. If the spring constant is 85 N/m, what is the magnitude of the spring force acting on the toy?
    2. Relevant equations
    f=-kx



    3. The attempt at a solution

    1. -230*-6
    = 1380

    2= -85*-2
    =170
     
  2. jcsd
  3. Mar 23, 2015 #2

    HallsofIvy

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    You are just being careless. You are told that the spring constant is 85 Newtons per meter and that the spring is compressed 6 centimeters, NOT 6 meters!
     
  4. Mar 23, 2015 #3
    Yes, that is quite careless of me. My formulas for both are correct tho, right?
     
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