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.
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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?
My guess would be the balls average velocity is 7 cm/sec since seven is the average number between 4 and 10.
• Without further information, why is this just a guess?
Because without the proper calculations and equations I just used an educated guess to conclude its average velocity.
• 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?
The ball traveled 18 centimeters. If the ball started with a velocity of 4 cm/sec and ended with 10 cm/sec the difference of the two is six. When you take six and multiply that by 3 you get 18.
the difference in velocities does not determine how far the ball travels
• At what average rate did its velocity change with respect to clock time during this interval?
I’m not to sure if I understand what this question is asking so I’m going to try and break it down. The average rate the velocity changed would be every 3 seconds per velocity according to the last question. Therefore the velocity would change every 3 seconds until the ball came to a stop.
this requires careful application of the definition of an average rate of change
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Twenty minutes
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&#At least part of your solution does not agree with the solution and comments given at the link below. You should view the solution at that link and self-critique as indicated there.
Solution
This link also expands on these topics and alerts you to many of the common errors made by students in the first part of this course. &#