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Assn 6 Seed Lab
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= 10cm/s
vf= 20cm/s
`ds= 45cm
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= 10cm/s/s
`dt= 3s
vf= 50cm/s
A ball travels 30 cm along an incline, starting from rest, while accelerating at 20 cm/s^2.
answer/question/discussion:
`ds= 30cm
a= 20cm/s/s
v0= 0cm/s
Then for each situation answer the following:
Is it possible from this information to directly determine vAve?
answer/question/discussion:
Situation 1: Yes, vf+v0/2= vAve
Situation 2: Not directly, but you can eventually find it using v0=vf*a`dt to find v0, then you can find `dv to find vAve.
Situation 3: Not directly, but you can use vf^2= v0^2+2a`ds to fins vf, then from there tou can find `dv to find vAve.
Is it possible to directly determine `dv?
answer/question/discussion:
Situation 1: Yes, vf-v0= `dv
Situation 2: Yes, as a= `dv/`dt, so a*`dt= `dv
Situation 3: See preceding anwer for Situation 3.
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25min
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&#Very good work. Let me know if you have questions. &#