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Homework Help: Temperature increase in water question

  1. Feb 26, 2015 #1
    1. A 50kg alumium block is dropped from a large height and hits a container of water at 150m/s. Assuming all the kinetic energy of the falling block goes into heating the 5kg water, what is the temperature increase of the water.

    2. Relevant equations
    Q=mc(change of t)
    KE=.5m(v^) maybe?

    3. The attempt at a solution

    .5(50)(150^)=562500 Jules
    562500= 5(4180)(change of t)
    change of t= 26.9
  2. jcsd
  3. Feb 26, 2015 #2


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    Staff: Mentor

    Did you have a question about your solution?
  4. Feb 27, 2015 #3

    Simon Bridge

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    Science Advisor
    Homework Helper

    Welcome to PF;
    Do you not know the equation for kinetic energy? Then look it up.
    Numbers are meaningless without units.
    Did you have a question?
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