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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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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Copy the problem below into a text editor or word processor.
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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:
Based on these two numbers, I would say the average is 7cm/sec. This is just estimated by adding the two velocities and dividing by two.
• Without further information, why is this just a guess?
->->->->->->->->->->->-> answer/question/discussion:
This is just a guess because I do not know the time interval that these two velocities occurred over. If it took a while in seconds then this average would be much different than the average I approximated.
• 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:
With using the estimated average velocity of 7cm/s than I would say 7 times 3 equals 21 cm.
• At what average rate did its velocity change with respect to clock time during this interval?
->->->->->->->->->->->-> answer/question/discussion:
The average rate that the velocity changed with respect to clock time would be 10m/s – 4m/s over 3 seconds which equals 2m/s/s.
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20 min
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I figured this would follow soon after the first attempt. Looks good.