cq_1_021

Phy 201

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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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: Its difficult to say as we don’t have average distance travelled in a direction.

• Without further information, why is this just a guess?

answer/question/discussion: Icant even guess without info on distance or rather displacement.

• 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: change in velocity * time= 6/3=2cm(Its again a guess work)

• At what average rate did its velocity change with respect to clock time during this interval?

answer/question/discussion: I couldn’t guess it.

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5mins

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I dont have the book or CD at thi spoint.SO i am doing random questions according to my prior knowledge.Let me know if you dont want me to do that.

Thanks

That's fine. These questions, along with the feedback, are pretty much self-contained.

&#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. &#