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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 gain will be 8cm/s^2 for 3 seconds or 24cm/s
v_f=(v_0 + 8cm/s^2*3s)=12cm/s + 24cm/s = 36cm/s
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• Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
For uniform velocity, vAve = (v_f - v_0)/2=(36cm/s - 12cm/s)/2 = (24cm/s)/2=12cm/s
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• How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> :
‘ds=vAve*’dt=12cm/s*3s=36cm
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15 minute
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&#Very good responses. Let me know if you have questions. &#