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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.
** 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: ->->->->->->->->->->->-> :
The velocity will be 36 cm/s because every sec the velocity increases by 8 cm/sec. in 3 sec the velocity will have increased by 24 cm/sec + 12 cm/sec = 36cm/sec
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• Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
If we take the initial velocity at 12cm/s and add the final velocity at 36cm/s and divide by two we obtain the average velocity of 24 cm/ sec.
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• How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
`ds= vAve (24cm/sec) * `dt (3 sec) = 72 cm
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** **
about 35 minutes
&#Very good responses. Let me know if you have questions. &#