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Phy 241
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 have to guess it is around 7cm/s which is the two velocities added and divided by 2.
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• Without further information, why is this just a guess?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
We do not know if it was a steady increase in velocity.
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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):
If it traveled with an average velocity of 7cm/s for 3s, it would have traveled about 21cm.
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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):
Since the velocity increased by 6cm/s over the period of 3s it velocity changed at an average rate of 2cm/s/s.
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&#Very good responses. Let me know if you have questions. &#