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Phy 231
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):
(10 + 4) / 2 = 7 cm/sec
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Without further information, why is this just a guess?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
You don't if the ball slows down or speeds at points between the
beginning and the end.
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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):
7 * 3 = 21 cm
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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):
10 - 4 = 6 cm/sec
6 / 3 = 2 cm/sec
@& You haven't included units in all steps, and the units of your result are wrong.*@
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*#&!
@& `c021*@