Gravity's Effect On A Bowling Ball In A Level Alley

AI Thread Summary
When a bowling ball rolls down a level alley, Earth's gravity does not do work on the ball because the direction of the gravitational force is perpendicular to the direction of the ball's displacement. Work is defined as the product of force and displacement in the direction of the force, and since gravity acts downward while the ball moves horizontally, no work is performed. The discussion highlights the importance of understanding the relationship between force direction and displacement in determining whether work is done. The concept of gravity's role in keeping objects grounded is also mentioned, but it does not apply to the work done on the bowling ball in this scenario. Overall, gravity influences the ball's weight but does not contribute to work in a level alley.
aerogurl2
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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.=)
 
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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?
 
aerogurl2 said:
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.=)

without gravity where would you be standing right now? the same applies to the bowling ball
 
rctrackstar2007 said:
without gravity where would you be standing right now? the same applies to the bowling ball

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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