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Phy 231
Your 'cq_1_04.1' 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 is moving at 10 cm/s when clock time is 4 seconds, and at 40 cm/s when clock time is 9 seconds.
• Sketch a v vs. t graph and represent these two events by the points (4 sec, 10 cm/s) and (9 s, 40 cm/s).
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
The first point is located at 4 seconds on the x axis and 10cm/s on the y axis. The second point is located at 9 seconds on the x axis and 40cm/s on the y axis.
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• Sketch a straight line segment between these points.
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
A line is drawn in between the two points outlined above
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• What are the rise, run and slope of this segment?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
Rise: 40cm/s - 10cm/s = 30cm/s
Run: 9 seconds - 4 seconds = 5 seconds
Slope: 30cm/s / 5seconds = 6cm/s^2
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• What is the area of the graph beneath this segment?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
Area = (40cm/s + 10cm/s)/2 * 5 seconds
Area = 25cm/s * 5 seconds
Area = 125cm^2
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*#&!
&#Very good work. Let me know if you have questions. &#