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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: ->->->->->->->->->->->-> :
8 x 3 = 24
24+ 12 = 36cm/s
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Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
24/2 = 12m/s
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The ball starts with a velocity of 12 m/s and its velocity increases continuously after that.
Its average velocity must be greater than 12 m/s.
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How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
12 x 3 = 36m
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If its average velocity was 12 m/s this would be correct (excepting the lack of units within your calculation).
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5 min
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Most of your calculations are correct, except for the lack of units.
However, besides including units at every step of your calculations, you need to reason things more tightly to avoid errors such as the one you made in calculating the average velocity.
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