Phy 121
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 sec
• What is the velocity at the midpoint of this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 28 cm/sec
• How far do you think the object travels during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 24 cm.
this isn't correct
• By how much does the clock time change during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 8 sec.
• By how much does velocity change during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 224 cm.
this isn't correct
• What is the average rate of change of velocity with respect to clock time on this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 3.1 cm/sec each second
• What is the rise of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> : 24 cm/sec
• What is the run of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> : 8 sec
• What is the slope of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> : m = 3
• What does the slope of the graph tell you about the motion of the object during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : The object is moving at a constant rate of three meters per second each second of traveling.
• What is the average rate of change of the object's velocity with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : The average rate of change of the velocity is 3 cm/sec each second.
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15 min
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See my notes, and check out the link below. If you're sure you understand then no revision is required; if not submit revisions and/or questions as indicate.
&#Please compare your solutions with the expanded discussion at the link
Solution
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