Phy 121
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: as it speeds up the air resistance increases
What happens to the net force acting on it?
answer/question/discussion: depends on mass, F=ma and friction force so Fnet = F - Ffrict
What happens to its acceleration?
answer/question/discussion: the acceleration increases until it reaches the acceleration of gravity 9.8m/s^2
You might be attributing the properties of the velocity to the acceleration.
At the instant of release the net force becomes equal to the weight and the acceleration becomes 9.8 m/s^2 downward. As it falls air resistance increases, and is directed upward (opposite the weight), so the magnitude of the acceleration decreases.
If it dropped from a much higher point, what would happen to the net force and the acceleration?
answer/question/discussion: the acceleration will be the same as above, the net force will be the same as above
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17min
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Your need to see the link below for additional comments on the last two questions. I believe you'll understand, so a revision is optional--submit a revision if you're not sure you understand, no need it you are sure.
&#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. &#