cq_1_051

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phy 201

Your 'cq_1_05.1' 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_05.1_labelMessages **

The problem:

A ball accelerates at 8 cm/s^2 for 3 seconds, starting with velocity 12 cm/s.

• What will be its velocity after the 3 seconds has elapsed?

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

aAve = (Vf-Vo)/t

8cm/s/s=(Vf-12cm/s/s)/3sec

24=vf-12

36cm/s/s=vf

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• Assuming that acceleration is constant, what will be its average velocity during this interval?

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

Vave= (Vf+Vo)/2

= (36cm/s+ 12cm/s)/2

=24cm/s

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• How far will it travel during this interval?

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

24cm/s * 3sec= 72 cm

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*#&!

&#Very good responses. Let me know if you have questions. &#