phy 201
Your 'cq_1_6.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
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/sec
vf= 20 cm/sec
`ds= 45 cm
• 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 sec
vf= 50 cm/sec
• A ball travels 30 cm along an incline, starting from rest, while accelerating at 20 cm/s^2.
answer/question/discussion: ->->->->->->->->->->->-> :
`ds= 30 cm
A= 20 cm/s/s
V0= 0
Then for each situation answer the following:
• Is it possible from this information to directly determine vAve?
answer/question/discussion: ->->->->->->->->->->->-> :
1. yes ((10cm/sec + 20cm/sec)/2)= 15cm/sec
2. no
3. no
• Is it possible to directly determine `dv?
• answer/question/discussion:
1. yes (20cm/sec-10cm/sec= 10cm/sec)
2. no
3. yes (10 cm/s/s * 3 sec= 30 cm/sec)
** **
10 min
** **
Good work, and there's no need to submit a revision but check the discussion at the link given below.
&#See the link provided below. However, unless you have questions or additional comments, you may ignore the request for a revision.
&#
&#Please compare your solutions with the expanded discussion at the link
Solution
Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#