phy 201
Your 'cq_1_02.2' 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 graph is constructed representing velocity vs. clock time for the interval between clock times t = 5 seconds and t = 13 seconds. The graph consists of a straight line from the point (5 sec, 16 cm/s) to the point (13 sec, 40 cm/s).
• What is the clock time at the midpoint of this interval?
->->->->->->->->->->->-> answer/question/discussion: 9 seconds
• What is the velocity at the midpoint of this interval?
->->->->->->->->->->->-> answer/question/discussion: 30 cm/sec
• How far do you think the object travels during this interval?
->->->->->->->->->->->-> answer/question/discussion: 14.56 cm.
• By how much does the clock time change during this interval?
->->->->->->->->->->->-> answer/question/discussion: 4 seconds
• By how much does velocity change during this interval?
->->->->->->->->->->->-> answer/question/discussion: 14 cm/sec
• What is the average rate of change of velocity with respect to clock time on this interval?
->->->->->->->->->->->-> answer/question/discussion: 14/4 = 3.5
• What is the rise of the graph between these points?
->->->->->->->->->->->-> answer/question/discussion: 8
• What is the run of the graph between these points?
->->->->->->->->->->->-> answer/question/discussion: 24
• What is the slope of the graph between these points?
->->->->->->->->->->->-> answer/question/discussion: 3
• What does the slope of the graph tell you about the motion of the object during this interval?
->->->->->->->->->->->-> answer/question/discussion: the slope shows the average rate of velocity.
• What is the average rate of change of the object's velocity with respect to clock time during this interval?
->->->->->->->->->->->-> answer/question/discussion: 3
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10 min
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While many of your answers are correct, some are not. You didn't indicate how you obtained your answers, so it's not possible to give you feedback on what you might have done wrong.
Please revise as indicated below, inserting a brief explanation of how you obtained each result. If you identify an error, you are of course welcome to correct it.
&#Please see my notes and submit a copy of this document with revisions and/or questions, and mark your insertions with &&&& (please mark each insertion at the beginning and at the end). &#