course Phy 231
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 equals 10cm/s, vf equals 20cm/s, ds is equal to 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 is equal to 10cm/s^2, dt is equal to 3 seconds, vf is equal to 50cm/s.
• A ball travels 30 cm along an incline, starting from rest, while accelerating at 20 cm/s^2.
answer/question/discussion:
ds is equal to 30cm, v0 is equal to 0cm/s, and acceleration is equal to 20cm/s^2
Then for each situation answer the following:
• Is it possible from this information to directly determine vAve?
answer/question/discussion:
Yes, vAve can be determined for each of the three different data sets.
• Is it possible to directly determine `dv?
answer/question/discussion:
Yes, dv can be determined in each of the three data sets as well.
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