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Momentum/Conservation of energy

  1. Mar 5, 2007 #1
    1. The problem statement, all variables and given/known data

    Fred (mass 50.0 kg) is running with the football at a speed of 6.10 m/s when he is met head-on by Brutus (mass 130 kg), who is moving at 5.10 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. How far do they slide?The coefficient of kinetic friction between football uniforms and Astroturf is 0.330 .

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 5, 2007 #2

    You got to try something before we can help you. At least a guess. What is the formula for kinetic energy? How does force relate to coefficient of kinetic friction? TRY!!
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