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phy 201
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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: ->->->->->->->->->->->-> :
vf = 20 cm/s v0 = 10 cm/s and ‘ds = 45 cm
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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: ->->->->->->->->->->->-> :
v0 = 10 cm/s2 vf = 50 cm/s and ‘dt = 3 sec
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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: ->->->->->->->->->->->-> :
v0 = 0 cm/sec vf = 20 cm/s2 and ‘ds = 30 cm
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Then for each situation answer the following:
• Is it possible from this information to directly determine vAve?
answer/question/discussion: ->->->->->->->->->->->-> :
Yes
@& There are three situations, and the answer is not the same for all three.
You need to address each situation and explain your reasoning for each.*@
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• Is it possible to directly determine `dv?
answer/question/discussion: ->->->->->->->->->->->-> :
Yes
@& see my note above*@
@&
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Be sure to include the entire document, including my notes.
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