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PHY121
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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cq_1_212
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PHY 121
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 should be moving faster than when it started. This is because, when it moves up the
hill, the incline and gravity are working against it. However, when it rolls back down,
the incline and gravity work in its favor so it will be able to gain additional speed.
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5 min
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@&
There is friction between the tires and the road.
How does this affect your reasoning?
&&&&The friction is working against movement both up and down the incline, so while I did consider it, I felt like it was going to have a similar effect in both directions.&&&&
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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. &#