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: The air resistance increases with the increase in velocity.
What happens to the net force acting on it?
answer/question/discussion: The net force upwards increases, and the net downwards force decreases.
The upward force of air resistance increases, gravitational force remains constant, and if the downward direction is positive, the net force decreases.
What happens to its acceleration?
answer/question/discussion: 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 net force would eventually be reduced to zero, and due to the lack of a net force the wad of paper would reach terminal velocity at which point there is no acceleration.
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5 minutes
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Good, but check out my notes and the link (no revision necessary):
&#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. &#