Phy 201
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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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:
Sketch a straight line segment between these points.
answer/question/discussion:
What are the rise, run and slope of this segment?
answer/question/discussion:
rise= 40cm/s-10cm/s
=30cm/s
run=10s-4s
=6s
slope= (30cm/s)/6s
= 5cm/s/s
What is the area of the graph beneath this segment?
answer/question/discussion:
ds=sqrt 30cm/s+6s
=sqrt 36cm
= 6cm
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15min
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wasn't sure if I was to answer the first part. I drew out the graphs though.
You got the slope right, but you missed the area. It isn't clear what you were thinking on that part of the question.
&#At least part of your solution does not agree with the solution and comments given at the link below. You should view the solution at that link and self-critique as indicated there.
Solution
This link also expands on these topics and alerts you to many of the common errors made by students in the first part of this course. &#