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PHY 241
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.
** CQ_1_04.1_labelMessages **
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).
Sketch a straight line segment between these points.
What are the rise, run and slope of this segment?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
rise = 40 cm / s - 10 cm / s = 30 cm / s = `dv
run = 9 s - 4 s = 5 s = `dt
m = rise / run = 30 / 5 = 6 cm/s^2 = `dv / `dt = aAve
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What is the area of the graph beneath this segment?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
A = .5(v_f + v_0)(`dt) = vAve * `dt = 25 * 5 = 125 cm = `ds
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5 min
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&#Very good responses. Let me know if you have questions. &#