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Homework Help: Kinetic Energy in Joules of an Object

  1. Sep 13, 2009 #1
    1. The problem statement, all variables and given/known data
    A car is traveling at a constant 60 miles per hour. What is its kinetic energy in Joules if its mass is 800 kg?

    2. Relevant equations
    KE = 1/2m * v2 (?)

    3. The attempt at a solution
    ½(800kg)*(26.82 m/s)2 = 287,724 kg * m2/s2 = 287,724 J

    I hope that looks right. I'm a business major and my advisor suggested this Physics class as "easy" for business majors. So far its not going so well. LOL Any help someone can offer on my solution would be great. Thanks.
  2. jcsd
  3. Sep 13, 2009 #2


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    Homework Helper

    Looks OK to me.
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