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A ball is dropped twice off the same initial height. trial one bounces

  1. Jan 28, 2013 #1
    a ball is dropped twice off the same initial height. trial one bounces back with a velocity of 3m/s and trial 2 bounces back with a velocity of 2m/s. the time the ball is in contact with the ground for trial 1 is 0.01s. are the impulses on the ball the same for both trials or is it less in trial 2???
     
  2. jcsd
  3. Jan 28, 2013 #2

    jtbell

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    Staff: Mentor

    Re: Momentum/impulse

    What do you think, and why?
     
  4. Jan 28, 2013 #3

    sophiecentaur

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    Re: Momentum/impulse

    How would you define the Impulse?
     
  5. Jan 28, 2013 #4
    Re: Momentum/impulse

    change in momentum
     
  6. Jan 28, 2013 #5

    sophiecentaur

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    Ok. What are the momentum changes in each case? And what is the other way of specifying impulse? (Working out speeds and times is easy, from the facts you have.)
     
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