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PHY 201
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 ball should be traveling the speed as when
it was released.
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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 is present the ball will be
traveling slower at the end than when it was
released but with the size of a ball and the
speed of a toss the air resistance would be
negligible.
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You can't assume air resistance to be negligible, given that the question asks you to consider it.
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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 201
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: ->->->->->->->->->->->-> :
The car will be traveling at the same speed.
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Friction is present with any automobile on any surface, and must be accounted for in your answer.
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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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