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Phy 121
Your 'cq_1_06.1' 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_06.1_labelMessages **
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: ->->->->->->->->->->->-> scussion:
v0 is 10 cm/s
vf is 20 cm/s
'ds is 45 cm
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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: ->->->->->->->->->->->-> scussion:
a is 10 cm/s^2
'dt is 3 sec
vf is 50 cm/s
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A ball travels 30 cm along an incline, starting from rest, while accelerating at 20 cm/s^2.
answer/question/discussion: ->->->->->->->->->->->-> scussion:
a is 20 cm/s^2
v0 is 0 cm/s
'ds is 30 cm
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Then for each situation answer the following:
Is it possible from this information to directly determine vAve?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
1st situation yes; (vf-v0)/2
2nd situation no; you have to find vf first
3rd situation no; no you have 'dt or vf first
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Is it possible to directly determine `dv?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
1st situation yes; (vf+v0)/2
2nd situation yes; 'dv= 'dt*a
3rd situation no; you can have to have vAve or 'dt first
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*#&!
&#This looks good. Let me know if you have any questions. &#