Phy 231
Your 'cq_1_23.1' 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 wad of paper is dropped from a second-story balcony and falls through still air to the ground.
• As it speeds up, what happens to the air resistance it encounters?
answer/question/discussion:
Answer: The air resistance is going to be greater as it speeds up because it is traveling faster each second. The total air resistance is not going to change though, all of the air resistance is going to be acting on a shorter time interval.
• What happens to the net force acting on it?
answer/question/discussion:
Answer: The net force is going to be greater as it speeds up but the total net force is going to be same if the paper travels the same distance at a fast or slow speed.
• What happens to its acceleration?
answer/question/discussion:
Answer: The gravitational acceleration will be constant but the air resistance will be increasing as the paper travels faster.
• If it dropped from a much higher point, what would happen to the net force and the acceleration?
answer/question/discussion:
Answer: The acceleration would be constant up to a certain speed then the paper’s acceleration would be zero. The net force would increase slightly because air resistance would increase the net force.
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15 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. &#