Phy 121
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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: ->->->->->->->->->->->-> :
If the object speeds up then I think it would be able to overcome more of the air resistance that it encounters.
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• What happens to the net force acting on it?
answer/question/discussion: ->->->->->->->->->->->-> :
If F= m*a then I think that the net force acting on the object will increase. I think this because if our acceleration is increasing and our mass remains the same that the force has ton increase as a result of an increase in acceleration.
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• What happens to its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
I think that the greater the distance the object has to fall that the acceleration will continue to increase.
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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: ->->->->->->->->->->->-> :
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If dropped from an even higher point then I think the acceleration and net force would still continue to increase.
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20 minutes
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The velocity of the falling object increases. However the acceleration of gravity is constant at 9.8 m/s^2. That acceleration doesn't increase by virtue of increasing velocity. If gravity is the only force acting on the object, its acceleration remains constant.
Please compare your solutions with the expanded discussion at the link
Solution
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