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Impulse-Momentum Theorem and acceleration

  1. Apr 20, 2009 #1
    Impulse-Momentum Theorem....

    1. The problem statement, all variables and given/known data
    So here's the problem:
    a 3.00 kg object has velocity 7.00 j m/s. Then, a total force of 12.0i N acts on the object for 5 seconds.
    A.Calculate the object's final velocity using the impulse momentum theorem.
    b. calc its acceleration from a = (vf - vi) / delta t.
    c. calculate its acceleration from a = F/m

    2. Relevant equations
    <given in question>

    I really dont know what to use for impulse-momentum theorem in a? Any and all help is appreciated....
     
  2. jcsd
  3. Apr 20, 2009 #2

    LowlyPion

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    Homework Helper

    Re: Impulse-Momentum Theorem....

    Welcome to PF.

    F = m*a = m*Δv/Δt

    F*Δt = m*Δv = Δp

    So in a, you have F and Δt. That gives you Δp
     
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