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PHY 231
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.
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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: ->->->->->->->->->->->-> :
8 cm/s^2 *3 seconds=24 cm/s
12 cm/s+24 cm/s=36 cm/s
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Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
24 cm/s+36 cm/s=60/2=30 cm/s
@& The ball has a final velocity of 36 cm/s. However its initial velocity is not 24 cm/s.
*@
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How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
30 cm/s*3 s=90 cm
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@& If 30 cm/s was the correct average velocity, this would be correct.*@
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&#Good responses. See my notes and let me know if you have questions. &#