PHY 121
Your 'cq_1_02.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
A graph is constructed representing velocity vs. clock time for the interval between clock times t = 5 seconds and t = 13 seconds. The graph consists of a straight line from the point (5 sec, 16 cm/s) to the point (13 sec, 40 cm/s).
What is the clock time at the midpoint of this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 9 seconds.
What is the velocity at the midpoint of this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 28cm/s.
How far do you think the object travels during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 224 cm.
By how much does the clock time change during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 8 s.
By how much does velocity change during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 24cm/s.
What is the average rate of change of velocity with respect to clock time on this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 3cm/s^2
What is the rise of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> : 24 cm/s
What is the run of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> : 8 s
What is the slope of the graph between these points?
answer/question/discussion: ->->->->->->->->->->->-> : 3
What does the slope of the graph tell you about the motion of the object during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :velocity is increasing
What is the average rate of change of the object's velocity with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :3 cm/s^2
** **
20 minutes.
** **
All of your quantities should have units; as long as you understand the units it's OK. Check the link if necessary:
&#Please compare your solutions with the expanded discussion at the link
Solution
Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#