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Homework Help: Gravity help

  1. May 15, 2006 #1
    I need some help on a question: When a bowling ball rolls down a level alley, does Earth's gravity do any work on the ball? Explain with the use of a diagram.

    I need help b/c I don't know if the Earth's gravity will effect the ball since the alley is not tilted.

    Thanks.=)
     
  2. jcsd
  3. May 15, 2006 #2

    Doc Al

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    Staff: Mentor

    What's the definition of work? How does the direction of the force (gravity) compare to the direction of the displacement? And how does that matter?
     
  4. May 16, 2006 #3
    without gravity where would you be standing right now? the same applies to the bowling ball
     
  5. May 16, 2006 #4

    Hootenanny

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    Yes, but is the force of gravity doing work by 'holding' you to the surface of the earth? (This is a question to the OP btw, we should let them answer).

    ~H
     
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