Phy 121
Your 'cq_1_02.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
The problem:
A ball starts with velocity 4 cm/sec and ends with a velocity of 10 cm/sec.
What is your best guess about the ball's average velocity?
answer/question/discussion: the average velocity is increasing, the ball is probably rolling down an incline
Without further information, why is this just a guess?
answer/question/discussion: there is not enough information to solve the problem, we need to know the distance traveled
If it takes 3 seconds to get from the first velocity to the second, then what is your best guess about how far it traveled during that time?
answer/question/discussion: 12cm from the first velocity to the second velocity
At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion: 2cm/s^2, rate of change of velocity is 10cm/s - 4cm/s / 3s
** **
15min
** **
&#Good responses. Let me know if you have questions. &#