Phy 231
Your 'cq_1_05.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
A ball accelerates at 8 cm/s^2 for 3 seconds, starting with velocity 12 cm/s.
*
What will be its velocity after the 3 seconds has elapsed?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
(8cm/s^2)(3 sec) gives us the change in velocity, or 'dv, which is 24 cm/s
If the ball starts at 12 cm/s and its change is 24 cm/s, then vf would be 12 cm/s + 24 cm/s = 36 cm/s.
*
Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
(12 cm/s + 36 cm/s)/2 = 24 cm/s would be the average velocity ((v0 + vf)/2)
*
How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> scussion:
(24 cm/s)(3 s) = 72 cm, since we have the average velocity, we can just multiply it by the interval and it gives us the total distance traveled.
** **
5 min
** **
&#Very good responses. Let me know if you have questions. &#