Phy 121
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.
** **
The problem:
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: ->->->->->->->->->->->-> : If the velocity is changing at a rate of 8cm/sec/sec, then the ending velocity after 3 seconds will be 36cm/s.
• Assuming that acceleration is constant, what will be its average velocity during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : Average velocity will be 36cm/s – 12cm/s divided by 2 which will equal 12cm/s.
you don't subtract velocities to find an average velocity
• How far will it travel during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : It should travel 36cm.
** **
15 minutes
** **
&#Please compare your solutions with the expanded discussion at the link
Solution
Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#