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PHY121
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.
** CQ_1_23.1_labelMessages **
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 pushes back on it more.
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What happens to the net force acting on it?
answer/question/discussion: ->->->->->->->->->->->-> :
The gravity is pulling and the air is pulling. This causes the paper to fall at a
steady speed.
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What happens to its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
It remains steady.
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As the paper speeds up the force of air resistance increases, while the force exerted by gravity remains constant.
So the net force is not constant and the acceleration will not remain the same.
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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: ->->->->->->->->->->->-> :
Gravity would have more opportunities to pull on the paper because of the distance, but
the air would also have more time to push on the paper and try to slow it down. So, I
believe that at a higher point, the net force would remain the same.
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I'll ask you to rethink some of your responses in light of my note.
Don't spend an inordinate amount of time on this, but do give it 10 minutes or so.
&#Please see my notes and submit a copy of this document with revisions, comments and/or questions, and mark your insertions with &&&& (please mark each insertion at the beginning and at the end).
Be sure to include the entire document, including my notes. &#
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