phy201
Your 'cq_1_06.1' 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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For each situation state which of the five quantities v0, vf, `ds, `dt and a are given, and give the value of each.
• A ball accelerates uniformly from 10 cm/s to 20 cm/s while traveling 45 cm.
answer/question/discussion: ->->->->->->->->->->->-> :
v0= 10cm/s
vf= 20cm/s
'ds= 45cm
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• A ball accelerates uniformly at 10 cm/s^2 for 3 seconds, and at the end of this interval is moving at 50 cm/s.
answer/question/discussion: ->->->->->->->->->->->-> :
a= 10cm/s^2
`dt= 3s
vf= 50cm/s
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• A ball travels 30 cm along an incline, starting from rest, while accelerating at 20 cm/s^2.
answer/question/discussion: ->->->->->->->->->->->-> :
ds= 30cm
v0=0cm/s
a= 20cm/s^2
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Then for each situation answer the following:
• Is it possible from this information to directly determine vAve?
answer/question/discussion: ->->->->->->->->->->->-> :
1. you would add v0 and vf and divide by 2 to determine vAve.
2. you would calculate 'dv from the info given then subtract that to find the initial velocity and
then add the initial and final velocity together and divide by 2
3. no
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• Is it possible to directly determine `dv?
answer/question/discussion: ->->->->->->->->->->->-> :
1.yes, subtract the initial from the final velocity
2. yes multiply the acceleration by the time interval
3. no
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15 min
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&#Very good work. Let me know if you have questions. &#