PHY 121
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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: ->->->->->->->->->->->-> :
#$&* 10cm/s is v0 and 20 cm/s vf while 45 cm is ds
• A ball accelerates uniformly at 10 cm/s^2 for 3 seconds, and at the end of this interval is moving at 50 cm/s.
answer/question/discussion: ->->->->->->->->->->->-> :
#$&* 10cm/s^2 is a, 3 second is dt 50cm/s is vf
• A ball travels 30 cm along an incline, starting from rest, while accelerating at 20 cm/s^2.
answer/question/discussion: ->->->->->->->->->->->-> :
#$&* 3cm is ds and a is 20cm/s^2 also rest is v0
Then for each situation answer the following:
• Is it possible from this information to directly determine vAve?
answer/question/discussion: ->->->->->->->->->->->-> :
#$&* no not directly given some values but we can find it by using those values to find something that is needed to solve
Is it possible to directly determine `dv?
answer/question/discussion: ->->->->->->->->->->->-> :
#$&* only for the first question would you be able to solve directly for dv
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30 min
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&#Good responses. Let me know if you have questions. &#