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Phy 231
Your 'cq_1_21.1' 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 ball is tossed vertically upward and caught at the position
from which it was released.
Ignoring air resistance will the ball at the instant it reaches
its original position be traveling faster, slower, or at the same
speed as it was when released?
answer/question/discussion: ->->->->->->->->->->->-> :
The speed would would be the same if no other forces other than
gravity are acting on the ball.
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What, if anything, is different in your answer if air resistance
is present? Give your best explanation.
answer/question/discussion: ->->->->->->->->->->->-> :
If air resistance acts on the ball then the speed would decrease.
The air resistance acts like friction which we know would push
upwards on the object while gravity is pulling downwards.
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&#See any notes I might have inserted into your document, and before looking at the link below see if you can modify your solutions. If there are no notes, this does not mean that your solution is completely correct.
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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Phy 231
Your 'cq_1_21.2' 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 typical automobile coasts up a typically paved incline, stops,
and coasts back down to the same position.
When it reaches this position, is it moving faster, slower or at
the same speed as when it began? Explain
answer/question/discussion: ->->->->->->->->->->->-> :
It would be the same.
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