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Homework Help: Newtons 2nd Law please help

  1. Nov 13, 2012 #1
    A 2.5 kg mass accelerates at 6.1 m/s
    in adirection 37◦north of east. One of the two
    forces acting on the mass has a magnitude of
    6.05 N and is directed north.
    Determine the magnitude of the second
    Answer in units of N

    I know you have to break it up into multiple components, but otherwise i don't have a clue of what to do
    Last edited: Nov 13, 2012
  2. jcsd
  3. Nov 13, 2012 #2
    Re: Newtons 2nd Law plz help

    If a mass accelerates in a certain direction, the net force applied to the mass must act in the same direction.

    F = ma is a vector equation.
  4. Nov 14, 2012 #3
    Re: Newtons 2nd Law plz help

    ya, key word here is net force, two forces accelerating at 6.1m/s/s, one of which was given, just get the N and magnitude correct for the other.

    if you are the marker for my exam, i think i'll be gone! amended the units for acceleration.....hahaha
    Last edited: Nov 14, 2012
  5. Nov 14, 2012 #4
    Re: Newtons 2nd Law plz help

    Just pointing out the acceleration is 6.1 m/s2. It was beginning to bug me now that I've seen it in multiple threads :-)
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