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: My best guess is 7cm/sec
Do I need to know the distance and time to find the exact acg velocity?
Without further information, why is this just a guess?
answer/question/discussion: Because I have no idea how long it took the ball to increase its speed to 10 cm/sec or the distance covered
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:
Based on my estimate of average rate, I would say 21 cm. (7*3)
At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion:
6/3 = 2 cm/sec per second
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20 mins
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&#Very good responses. Let me know if you have questions. &#