phy 201
Your 'cq_1_6.1' 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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For each situation state which of the five quantities v0, vf, `ds, `dt and a are given, and give the value of each.
A ball accelerates uniformly from 10 cm/s to 20 cm/s while traveling 45 cm.
answer/question/discussion: ds = 45cm , v0= 10cm/s, vf = 20cm/s
A ball accelerates uniformly at 10 cm/s^2 for 3 seconds, and at the end of this interval is moving at 50 cm/s.
answer/question/discussion: dt= 3sec , a = 10cm/s^2 , vf = 50cm/s
A ball travels 30 cm along an incline, starting from rest, while accelerating at 20 cm/s^2.
answer/question/discussion: dt = 30cm, v0=0, a = 20cm/s^2
Then for each situation answer the following:
Is it possible from this information to directly determine vAve?
answer/question/discussion: 1- yes because its accel uniformly and you are given v0 and vf. 2- yes, you can find v0 from the info given then you will have v0 and vf. 3- no, it is not uniform acceleration you could only find change in velocity
Is it possible to directly determine `dv?
answer/question/discussion: 1- yes subtract v0 from vf, 2- yes, first you have to find v0, 3- yes if you used the standard equation for acceleration and since v0 = 0
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15min
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Good answers, but you need to compare them to the solutions given in the link below. You can ignore the request for revision, unless you have questions or comments.
&#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. &#