Phy 121
Your 'cq_1_01.1' 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:
Here is the definition of rate of change of one quantity with respect to another:
The average rate of change of A with respect to B on an interval is
average rate of change of A with respect to B = (change in A) / (change in B)
Apply the above definition of average rate of change of A with respect to B to each of the following. Be sure to identify the quantity A, the quantity B and
the requested average rate.
If the position of a ball rolling along a track changes from 10 cm to 20 cm while the clock time changes from 4 seconds to 9 seconds, what is the average
rate of change of its position with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
10cm/5seconds
2 cm/second
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If the velocity of a ball rolling along a track changes from 10 cm / second to 40 cm / second during an interval during which the clock time changes by 3
seconds, then what is the average rate of change of its velocity with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
30cm a second/3 seconds
10cm/second
Your units aren't completely correct here. Be sure to check the discussion in the link given at the end of this document.
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If the average rate at which position changes with respect to clock time is 5 cm / second, and if the clock time changes by 10 seconds, by how much does the
position change?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
5cm/second / 10 seconds
1 cm
This answer is incorrect. Be sure you compare with the link provided at the end of this document.
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You will be expected hereafter to know and apply, in a variety of contexts, the definition given in this question. You need to know this definition word for
word. If you try to apply the definition without using all the words it is going to cost you time and it will very likely diminish your performance.
Briefly explain how you will ensure that you remember this definition.
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
I will write it in an easy to find place in the notebook, as well as spend time to memorize it.
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You are asked in this exercise to apply the definition, and given a general procedure for doing so. Briefly outline the procedure for applying this
definition, and briefly explain how you will remember to apply this procedure.
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
It will always be the difference in item A divided by the difference in item B, with the respect given to B. I have the procedure written down.
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10 minutes
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6/10 1:30 pm
&#See any notes I might have inserted into your document. If there are no notes, this does not mean that your solution is completely correct.
Then please compare your solutions with the expanded discussion at the link
Solution
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