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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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?
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I would guess that the ball's average velocity would be 7cm/sec. I get this solution be finding the average between 4 and 10. (4 + 10)/2 = 7.
* Without further information, why is this just a guess?
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Because I believe I would need the respective times that the velocities were taken so I could take the differences of both the displacements and times.
* 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?
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My best guess would be 21cm. I get this by going back to the average velocity of 7cm/sec I calculated before. Using that I just multiply 7cm/sec by the 3 seconds it takes the object to pass between the two points.
* At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> on:
It appears that the object changed at an average rate of 2cm/second during that 3 second time interval. I get this by subtracting the 10cm/sec by the 4 cm/sec to get 6cm/sec. From there, I divide by the time interval between those two velocities (3 seconds) to get 2cm/sec.
`er11
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This assignment took me about 20 minutes to complete.
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Good, except for that units error. Check the link; no revision is necessary.
&#Please compare your solutions with the expanded discussion at the link
Solution
Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#