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PHY 201
Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Question Form_labelMessages **
Seed 7.2 Force Experiment ?
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The next block is the response I received from you on my Seed 7.2 assignment. I was unsure of your response and what you meant by it. I have copied the entire assignment, response, and my question into the next block. Thanks.
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cq_1_072
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PHY 201
Your 'cq_1_07.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** CQ_1_07.2_labelMessages **
An automobile rolls 10 meters down a constant incline with slope .05 in 8 seconds, starting from rest. The same automobile requires 5 seconds to roll the same distance down an incline with slope .10, again starting from rest.
• At what average rate is the automobile's acceleration changing with respect to the slope of the incline?
answer/question/discussion: ->->->->->->->->->->->-> : ->->->->->->->->->->->-> :
v_ave_1=10m/8s = 1.25 m/s so ‘dv = 2.50 m/s a_1=2.50 m/s / 8 s = 0.3125 m/s^2
v_ave_2 = 10m/5s = 2 m/s so ‘dv=4 m/s a_2= 4m/s / 5 s = 0.8 m/s^2
Average rate of changing acceleration with respect to time implies ‘da/change in slope(m) so ‘da/’dm = (a_2 - a_1)/(m_2 - m_1) = (0.8 m/s^2 - 0.3125 m/s^2)/(0.10 - 0.05) = 0.4875 m/s^2 / 0.05 = 9.75 m/s^2
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5 minutes
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Good.
Note that it is possible your force experiment was submitted with this document, instead of separately. If so, this might be an error on your part, but it could also be an error in the website's handling of the form.
Either way, if you did submit that experiment, please submit it again. If you don't have a copy let me know, and let me know on what date you submitted it.
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I do not understand what you wrote above. ???What force experiment are you talking about???
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If you don't know, then it probably wasn't yours, which would mean that the webform or the website malfunctioned.
If it's not yours, then hopefully whoever submitted it will resubmit when it doesn't show up.
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