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Dynamics Hooke's law need help

  1. Jul 15, 2015 #1
    1. The problem statement, all variables and given/known data
    A 75g object vibrates at the end of a spring(k=5.0 N/M) if the maximum displacement of the object is 0/080m to tge right what is the maximum acceleration?

    2. Relevant equations


    3. The attempt at a solution
    Fs=-kx so... (-5)(0.080)=Fs and fs=fg so -0.4=75a then a is -.0053... the answer is like 5.3ms/^2 left did i convert something wrong...
     
  2. jcsd
  3. Jul 15, 2015 #2

    TSny

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    Note the unit for the mass. What is the SI unit for mass?
     
  4. Jul 15, 2015 #3
    grams.
     
  5. Jul 15, 2015 #4

    TSny

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    The SI unit of mass is not grams.
     
  6. Jul 15, 2015 #5
    oh. you use kg.. i ssee thanks
     
  7. Jul 15, 2015 #6

    TSny

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    OK. By the way, welcome to PF!
     
  8. Jul 15, 2015 #7
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