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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.
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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 is given which is 10 cm/s. Vf is given which is 20 cm/s. The `ds is 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: ->->->->->->->->->->->-> :
The a is 10cm/s^2. The `dt is 3 seconds. The vf is 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: ->->->->->->->->->->->-> :
The `ds is 30 cm. The v0 is 0 cm/s. A is 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: ->->->->->->->->->->->-> :
Not directly, you will have to figure out the change in time before you can get the acceleration.
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Is it possible to directly determine `dv?
answer/question/discussion: ->->->->->->->->->->->-> :
No, you will need to find out both vf and v0 before you can determine the `dv. You can also rearrange equations to determine the change in velocity. You can get it by `dv = a*`dt
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&#Very good responses. Let me know if you have questions. &#