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Maximum speed of an object after a spring

  1. Jan 14, 2013 #1
    A 534 g mass is connected to a light spring of
    force constant 6 N/m that is free to oscillate
    on a horizontal, frictionless track. The mass
    is displaced 2 cm from the equilibrium point
    and released from rest.

    What is the maximum speed of the mass?

    What is the maximum acceleration of the mass?

    I found the period to be 1.87

    Now I don't know what formula to use for the maximum speed, or to find the maximum acceleration.
     
  2. jcsd
  3. Jan 14, 2013 #2

    haruspex

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    Do you know the formula for the energy stored in a spring? What will the stored energy be when the mass is at max speed?
     
  4. Jan 14, 2013 #3
    is it Hooke's law?
     
  5. Jan 14, 2013 #4
    wait is it PE=(1/2)(k)(x²)?
     
  6. Jan 14, 2013 #5
    i got .037 m/s for my speed, does that sound right?
     
  7. Jan 15, 2013 #6

    haruspex

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    Sounds too low. Pls post your working.
     
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