cq_1_061

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Phy 121

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.

** CQ_1_06.1_labelMessages **

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: ->->->->->->->->->->->-> scussion:

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: ->->->->->->->->->->->-> scussion:

a = 10 cm/s^2

`dt = 3s

vf=50 cm/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: ->->->->->->->->->->->-> scussion:

v0 = 0cm/s

`ds = 30cm

a = 20 cm/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: ->->->->->->->->->->->-> scussion:

It is possible to directly determine vAve from the first situtation vAve=(v0+vf)/2

Is is not directly possible from the other two, you would need multiple steps

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Is it possible to directly determine `dv?

answer/question/discussion: ->->->->->->->->->->->-> scussion:

It is possible to directly determine `dv from the first situtation `dv =vf-v0

Is is not directly possible from the other two, you would need multiple steps

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10 minutes

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&#Very good responses. Let me know if you have questions. &#