#$&*
PHY 241
Your 'cq_1_04.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** CQ_1_04.1_labelMessages **
The problem:
A ball is moving at 10 cm/s when clock time is 4 seconds, and at 40 cm/s when clock time is 9 seconds.
• Sketch a v vs. t graph and represent these two events by the points (4 sec, 10 cm/s) and (9 s, 40 cm/s).
• Sketch a straight line segment between these points.
• What are the rise, run and slope of this segment?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
the rise of this graph is 40m/s-10m/s = 30m/s
the run is 9s-4s=5s
slope is 30m/s/5s=6m/s^2
#$&*
• What is the area of the graph beneath this segment?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
The area of this trapezoid is the average altitude * the base length. Average altitude is 40+10/2=50/2=25m/s
25m/s* 5sec = 125m this is the displacement in the time interval.
#$&*
** **
5min
** **
&#Very good responses. Let me know if you have questions. &#