phys 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:
vAve= 7cm/s
Without further information, why is this just a guess?
answer/question/discussion:
because to find the average of something, you add the V1 and V2 and then divide by 2 because that is how many times the velocity changed from begining to end.
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:
d=v*t
=7cm/s*3s
d = 21cm
At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion:
dV= (7cm/s)/3cm
dv=2.33cm/s^2
You mean (7cm/s)/(3 s), not (7cm/s)/3cm.
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20 min
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&#Good responses. See my notes and let me know if you have questions. &#