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Homework Help: Physics, Work/friction help.

  1. Dec 4, 2008 #1
    1. The problem statement, all variables and given/known data

    Alright well the problem is that 10 kg frozen turkey is thrown and goes horizontally on a surface with a 0.10 coefficient of kinetic friction. It travels for 10 meters. What is the work the friction does to stop the object. And what is the speed the frozen turkey is thrown at?

    2. Relevant equations


    W=f * d

    3. The attempt at a solution

    I did the problem I don't know if it is right, I am hoping you guys will tell me if I did.

    First I got the weight of the turkey.
    10 kg * 9.81 m/s^2 = 98.1 N downward

    Then 98.1N * Coefficient of .10 = 9.81 N kinetic friction.

    Then plugged that into the work equation W=9.81 * 10 meters = so I got the work
    of friction to be 98.1 Joules.

    Then to find the speed I did

    98.1 joules = 10*v^2/2 then got it to equal 4.43 m/s. did I do these steps right? If not can somebody help me? Thanks.
  2. jcsd
  3. Dec 4, 2008 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Looks good to me.
  4. Dec 4, 2008 #3
    Really? Nice. If so thank you. If anyone finds an error please let me know. thank you :)
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