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course Phy 121
re-submit
A ball is tossed vertically upward and caught at the position from which it was released.
• Ignoring air resistance will the ball at the instant it reaches its original position be traveling faster, slower, or at the same speed as it was when released?
answer/question/discussion:
The person would have had to thrown the ball hard enough to overcome gravity. So, it would be initially be accelerating faster than gravity. It would slow down and reach a point where its velocity is 0 and acceleration is -9.8 m/s^2. Then, it would return to the person accelerating to 9.8 m/s^2. I think that it would be traveling slower.
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• What, if anything, is different in your answer if air resistance is present? Give your best explanation.
answer/question/discussion:
Accounting for air resistance, it would be traveling even slower as it returned.
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Note that you should use the form for the individual 'seed' question, in order to be sure you're provided with the correct link. If you haven't correctly identified the problem, the link will be wrong. However I expect you've identified it accurately, so the link should work.
Sorry to keep repeating the message, but I want you to be sure you see it.
There is no need for a revision, but see the discussion:
&#See any notes I might have inserted into your document, and before looking at the link below see if you can modify your solutions. If there are no notes, this does not mean that your solution is completely correct.
Then please compare your old and new 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.If your solution is completely consistent with the given solution, you need do nothing further with this problem. &#
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