cq_1_061

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Phy 231

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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Copy the problem below into a text editor or word processor.

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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: ->->->->->->->->->->->-> :

given: v0= 10cm/s, vf= 20cm/s, ds= 45cm

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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: ->->->->->->->->->->->-> :

given: a= 10cm/s^2, dt= 3s, vf= 50cm/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: ->->->->->->->->->->->-> :

given: ds= 30cm, v0= 0cm/s, a= 20cm/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: ->->->->->->->->->->->-> :

1st problem yes, 2nd problem yes, 3rd problem no ( not without using the equations of uniformly accelerated motion)

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• Is it possible to directly determine `dv?

answer/question/discussion: ->->->->->->->->->->->-> :

1st problem yes, 2nd problem yes, 3rd problem no (not without using the equations of uniformly accelerated motion)

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&#Good responses. Let me know if you have questions. &#