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Finding the Average net Force

  1. Nov 16, 2009 #1
    Your 2000 kg Mercedes is accelerated from 10 m/s to 30 m/s in 4.75s. What is the average net force that you have applied to the car in that time interval?


    Givens are:
    mass= 2000 kg
    time= 4.75s
    acceleration=(Vf-Vi)/t= (30m/s-10m/s)/4.75s= 4.21m/s2
    F=m*a= 2000kg*4.21m/s2= 8420 N

    Unidentified:
    FNet=?


    I'm completely stumped. Help is greatly appreciated!
     
  2. jcsd
  3. Nov 16, 2009 #2

    PhanthomJay

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    It's F_net =ma. F_net =??
     
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