#$&*
phy201
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):
1 cm/sec
@& This isn't correct. You haven't explained your reasoning, so I can't tell where your thinking might have gone off track.*@
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Without further information, why is this just a guess?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
There is no time involved
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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):
10-4=6*3=18cm
@& Part of your thinking is correct, and part is not.
Can you explain how your result is connected to the definition of average rate?*@
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At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
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Copy and paste your work into the box below and submit as indicated:
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10 minutes
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@& Please see my notes, redo this exercise to provide more explanation, in the process correcting any errors you become aware of. Then resubmit.*@