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?
The air resistance prevents the wad of paper from speeding up as fast as it could be traveling. Some energy is lost to the air resistance.
answer/question/discussion:
• What happens to the net force acting on it?
The net force is not as powerful because of the air resistance.
answer/question/discussion:
• What happens to its acceleration?
The acceleration is slightly less than 9.8m/sec^2 because the air resistance is working against it.
answer/question/discussion:
• If it dropped from a much higher point, what would happen to the net force and the acceleration?
Both the net force and acceleration would be greater, but still less than what they could be if they were in a vacuum.
answer/question/discussion:
What forces contribute to the net force? How do these forces compare if the object is dropped from a much higher point? Do your answers to these questions suggest any modifications to the answers you have given here?
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5 minutes
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Good answers, with the possible exception of the last question.
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