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.
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As it speeds up, what happens to the air resistance it encounters?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
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The air resistance increases.
What happens to the net force acting on it?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
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The net force decreases because the air resistance increases, which counteracts (part of) the Fgravity.
What happens to its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
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Its acceleration decreases since the Fnet decreases, and Fnet=ma.
If it dropped from a much higher point, what would happen to the net force and the acceleration?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
If the object speeds up enough to the point where air resistance equals the weight, it would stop accelerating (it would go at a constant speed).
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10 min
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Good work. See my notes and let me know if you have questions.