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Homework Help: Cinservatuon of energy icline and spring problem

  1. Dec 12, 2009 #1
    1. The problem statement, all variables and given/known data

    A 3.20 kg block starts at rest and slides a distance d down a frictionless 30.0° incline, where it runs into a spring (Fig. 8-6). The block slides an additional 19.5 cm before it is brought to rest momentarily by compressing the spring, whose spring constant k is 430 N/m.

    (a) What is the value of d?

    (b) What is the distance between the point of first contact and the point where the block's speed is greatest?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Dec 12, 2009 #2
    You must attempt at a solution.

    Since you know energy is conserved. Can you list what energy type of energy is started with and end with?
  4. Dec 12, 2009 #3
    i did mgh=.5kxsquared

    and the found 31.36h=8.175 but that is wrong and i know m should be less than 1 b/c that would make sense
  5. Dec 12, 2009 #4
    It didn't ask you to find height. It asked you to find distance that it travels.

    I don't know what you mean by m < 1. m as in mass?
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