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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.
** CQ_1_23.1_labelMessages **
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 changes proportionally to the velocity, so as the was speeds up the resistance increases.
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• What happens to the net force acting on it?
answer/question/discussion: ->->->->->->->->->->->-> :
gravity does not change, the air resistance will though
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• What happens to its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
Acceleration will speed up but not change direction
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Acceleration can increase or decrease, but it can't speed up or slow down. Acceleration determines the rate at which the object speeds up or slows down.
What is the direction of the gravitational force?
What is the direction of the force of air resistance?
The magnitude of the air resistance increases. What does this do to the magnitude of the resultant vector?
What therefore are the implications for the acceleration.
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• If it dropped from a much higher point, what would happen to the net force and the acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
Net force and acceleration will continue to increase.
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15 min
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