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phy 201
Your 'cq_1_02.1' 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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The problem:
A ball starts with velocity 4 cm/sec and ends with a velocity of 10 cm/sec.
• What is your best guess about the ball's average velocity?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
I would say that the ball would have an average velocity of 5cm/sec, because in a previous assignment I learned that an object’s final velocity is double that of its average velocity. So if the velocity of the ball ended up an 10cm/sec (its final velocity), Then divide the final velocity by 2 to get the average velocity. 10cm/sec / 2 = 5cm/sec.
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• Without further information, why is this just a guess?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
I would think it would be fairly accurate based on the information learned in past work. But it can be identified as a guess because of the unknown information like the time and the distance the ball rolled.
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• If it takes 3 seconds to get from the first velocity to the second, then what is your best guess about how far it traveled during that time?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
Well I would think that is would depend on what the object is before any kind of educated guess could be made. It’s the object moving by gravity alone, or is the object motor powered?
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• At what average rate did its velocity change with respect to clock time during this interval?
The average rate of velocity change increased as time increased.
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
The average rate of velocity change increased as time increased.
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about 10 minutes
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&#See any notes I might have inserted into your document. If there are no notes, this does not mean that your solution is completely correct.
Then please compare your 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. &#