Phy 231
Your 'cq_1_23.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A wad of paper is dropped from a second-story balcony and falls through still air to the ground.
• As it speeds up, what happens to the air resistance it encounters?
answer/question/discussion: ->->->->->->->->->->->-> :
It increases
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• What happens to the net force acting on it?
answer/question/discussion: ->->->->->->->->->->->-> :
air resistance is going up and gravity is going down
gravity isn't changing, but net force is
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• What happens to its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
it will start to decrease because the speed is increasing.
There is no direct link between increased speed and decreased acceleration. There is an indirect link, since air resistance increases with speed.
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• If it dropped from a much higher point, what would happen to the net force and the acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
it will still increase, just not as much.
Neither net force nor acceleration increases; you appear to understand this in your next response. Not sure to what you're referring in this one.
the net force and acceleration both will head to 0
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15 mins
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No revision necessary if you understand my notes and the discussion:
&#Please compare your solutions with the expanded discussion at the link
Solution
Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#