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Homework Help: Momentum and Energy

  1. Apr 29, 2008 #1
    An isolated system is initially at rest. Is it possible for parts of the system to be in motion at some later time? Explain.

    When driving a golf ball, a good 'follow-through' helps to increase the distance of the drive. Explain why this technique allows you to hit the ball farther.
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  3. Apr 29, 2008 #2


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  4. Apr 29, 2008 #3


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    This is false, after the ball leaves the club after the collision, it doesn't matter what the golfer does with the club.
  5. Apr 30, 2008 #4
    Initial momentum is zero, which is a vector quantity.
    certainly one part can have motion after some time, considering the fact that you are not restricting the motion of the other part.
    example: BOMB explosion
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