Phy 121
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: ->->->->->->->->->->->-> : The initial velocity is 12 cm/s so after the first second it will have increased to 20 cm/s, after the second to 28 cm/s, and after the third to 36 cm/s.
• Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : vAve = (36 cm/s + 12 cm/s) / 2 = 24 cm/s
• How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 24 cm/s * 3 s = 72 cm
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10 minutes
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&#Very good responses. Let me know if you have questions. &#
Phy 121
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.
** **
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: ->->->->->->->->->->->-> : The initial velocity is 12 cm/s so after the first second it will have increased to 20 cm/s, after the second to 28 cm/s, and after the third to 36 cm/s.
• Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : vAve = (36 cm/s + 12 cm/s) / 2 = 24 cm/s
• How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 24 cm/s * 3 s = 72 cm
** **
10 minutes
** **
&#Very good responses. Let me know if you have questions. &#