phy121
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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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?
7cm/sec
Without further information, why is this just a guess?
because without a distance traveled, time in transit, and at least 2 more velocity samples there is no way of knowing how long it traveled at 4cm/sec or 10cm/sec
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?
21cm
At what average rate did its velocity change with respect to clock time during this interval?
(2cm/sec)/sec
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5min
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&#Your work looks good. See my notes. Let me know if you have any questions. &#