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AP Physics ~ Momentum ~ A 3.0-kg ball, which is dropped, strikes the ground with a ve

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  1. Oct 23, 2012 #1


    A 3.0-kg ball, which is dropped, strikes the ground with a velocity of 16.0 m/s and rebounds with a velocity of -12.0 m/s. What is the change in momentum?
     
  2. jcsd
  3. Oct 23, 2012 #2
    Re: AP Physics ~ Momentum ~ A 3.0-kg ball, which is dropped, strikes the ground with

    Remember the formula for momentum?
     
  4. Oct 23, 2012 #3
    Re: AP Physics ~ Momentum ~ A 3.0-kg ball, which is dropped, strikes the ground with

    p=mv ?
     
  5. Oct 23, 2012 #4
    Re: AP Physics ~ Momentum ~ A 3.0-kg ball, which is dropped, strikes the ground with

    Yes. Now how does that apply to the problem? If p = mv, what is change in p?
     
  6. Oct 23, 2012 #5
    Re: AP Physics ~ Momentum ~ A 3.0-kg ball, which is dropped, strikes the ground with

    mv final-mv inital
     
  7. Oct 23, 2012 #6
    Re: AP Physics ~ Momentum ~ A 3.0-kg ball, which is dropped, strikes the ground with

    Yep. Now is momentum a vector quantity? Does the sign matter?
     
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