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Phy 241
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: ->->->->->->->->->->->-> :
tHE air resistance it encounters is proportinal the change in velocity, so when the wad speeds up, air resistance increases
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What happens to the net force acting on it?
answer/question/discussion: ->->->->->->->->->->->-> :
The net force acting on the wad of paper increases because of potential energy, the further the drop, the more the force of the wad in the negative direction
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Gravitational force doesn't change.
Air resistance does.
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What happens to its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
the acceleration is gravity, but once air resitance comes into affect the wad will begin to slow down and acceleration will decreasestays constant
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The wad won't slow down. Its acceleration will decrease in magnitude, but acceleration won't change direction.
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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: ->->->->->->->->->->->-> :
the net force will continue to increase and acceleration will continue to decrease, balancing each other other. net force and acceleration will be constant and unchanging
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If net force increases then so does acceleration. But acceleration does decrease in magnitude.
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Then please compare your old and new 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.If your solution is completely consistent with the given solution, you need do nothing further with this problem. &#
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