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Acceleration and Net Force

  1. Oct 22, 2014 #1
    1. The problem statement, all variables and given/known data
    Suppose that a person is pulling a car with an acceleration of 6 m/s^2. If the reindeer triples the net force, what is the new acceleration?

    2. Relevant equations
    F=ma
    where, m= mass, a= acceleration, F=force

    3. The attempt at a solution
    I really do not know what my teacher means by this problem.
    I think the answer is 18 m/s^2.
    Thank You
     
  2. jcsd
  3. Oct 22, 2014 #2
    a = F/m

    All you're doing is tripling the Net Force. So, what would happen?
     
  4. Oct 22, 2014 #3
    I do not get what you are asking!
     
  5. Oct 22, 2014 #4
    Please Help!
    Thank you
     
  6. Oct 22, 2014 #5
    I derived a = F/m from F = ma.

    Just think about it. All we're doing is tripling the net force. You can put numbers in for examples and see what happens.
     
  7. Oct 22, 2014 #6
    What do you mean by put numbers in for examples?
     
  8. Oct 22, 2014 #7
    when we triple the net force, A = F / m there will be a value of 3 next to the F. it looks like this A = 3F / M (if F increased by 3x and m stayed the same A would increase by a factor of 3 also)
    this relation proves that the acceleration does increase by 3x. so 18 seems like the answer
     
  9. Oct 23, 2014 #8
    Thank you!!!
     
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