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.
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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: ->->->->->->->->->->->-> :
We are provided with the following information:
v 0= 10 cm/s
vf=20cm/s
‘ds= 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: ->->->->->->->->->->->-> :
We are provided with the following information:
‘dt = 3 seconds
a = 10 cm/s^2
vf= 50 cm/s
We are also given enough information to determine what ‘ds is.
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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: ->->->->->->->->->->->-> :
‘ds = 30 cm
v 0 = ocm/s
a = 20 cm/s^2
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Then for each situation answer the following:
• Is it possible from this information to directly determine vAve?
answer/question/discussion: ->->->->->->->->->->->-> :
For the first problem we can determine the average velocity.
For the second problem we can determine the average velocity.
For the third problem we cannot determine the average velocity.
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• Is it possible to directly determine `dv?
answer/question/discussion: ->->->->->->->->->->->-> :
For our first problem we can determine the change in velocity.
For our second problem we can determine the change in velocity.
For the third problem we cannot determine the change in velocity.
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30-45 minutes
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&#Your work looks very good. Let me know if you have any questions. &#