cq_1_061

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Phy201+L

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- 10 cm/s

vf- 20 cm/s

‘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: ->->->->->->->->->->->-> :

a- 10 cm/s/s

‘dt- 3 seconds

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: ->->->->->->->->->->->-> :

‘ds- 30 cm

v0- 0 cm/s

a- 20 cm/s/s

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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) yes.

2) yes.

3) no.

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• Is it possible to directly determine `dv?

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

I don’t know what ‘dv symbolizes???

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@& `d is the typewriter-notation representation of the Delta symbol.

v is the symbol used to indicate velocity.

So `dv represents the change in velocity during an interval.*@

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&#Good work. See my notes and let me know if you have questions. &#