cq_1_051

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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.

** 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: ->->->->->->->->->->->-> :

a = 8cm/s^2, v0 = 12 cm/s, t = 3s, vf =?

vf = 12 cm/s + 8 cm/s^2 *(3s) = 36 cm/s

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

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

vAve = (Vf + v0) / 2 = 24 cm/s

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How far will it travel during this interval?

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

'ds = vAve * 'dt = 24 cm/s * 3s = 72 cm

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