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Phy 231
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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6/12 10:26 pm Revision
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15 min
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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).
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What is the clock time at the midpoint of this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
9 sec
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What is the velocity at the midpoint of this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
28 cm/sec
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How far do you think the object travels during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
v_Ave = (vf + vi)/2 => v_Ave = (40 + 16)/2 = 28 cm/sec
v_Ave = (ds / dt) => 28 = (ds / 8) => ds = 228 cm
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By how much does the clock time change during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
8 sec
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By how much does velocity change during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
24 cm/s
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What is the average rate of change of velocity with respect to clock time on this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
24 / 8 = 3.0 cm/sec^2
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What is the rise of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
24 cm/sec
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What is the run of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
8 sec
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What is the slope of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
3.0 cm/sec^2
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What does the slope of the graph tell you about the motion of the object during this
interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
The object is increasing in velocity at a constant rate.
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What is the average rate of change of the object's velocity with respect to clock time
during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
24 / 8 = 3.0 cm/s^2
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&#Your work looks very good. Let me know if you have any questions. &#