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Forces - Problem

  1. Feb 26, 2012 #1
    1. The problem statement, all variables and given/known data
    What force is it needed to move a body from rest at velocity of 5m/s on distance 15m, for time of 2s. Assume no friction.


    2. Relevant equations
    ##F_{net}=ma##


    3. The attempt at a solution
    Can I solve this problem without the mass of the body, if yes, what formula is needed? thanks!
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Feb 26, 2012 #2
    If you want an actual number for the force, then you need mass. Think about pushing a truck on ice (zero friction) versus pushing a small car. Wouldn't it require more force for the larger object to attain the same speed?
     
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