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#1
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| All bodies free fall at the same constant rate (about 16.1'/sec^2=s/sec^2=g/2); yet SI has no units that make use of this constant: If they did the kilogram would have units of [(2w/g)=weight/(g/2)]; or one kilogram equals two newtons/g! |
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#2
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#3
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| The rate of free fall is not a constant. The rate of fall depends on the strength of the gravatational field. objects of differing masses fall at the same rate in any one field, but at different rates in different field strengths. |
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#4
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| [Only registered users see links. ] wrote: You're right max! Good going; but this got a lot of peoples' attention: I should have been more specific, and said something more like: At any particular time and place on Earth, in an environmentally controled laborarory, all bodies free fall at the same constant rate (about 16.1'/sec^2=s/sec^2=g/2); yet SI has no units that make use of this constant: If they did the kilogram would have units of [(2w/g)=weight/(g/2)]; or one kilogram equals two newtons/g! Don |
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#5
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| Don1 wrote: I can't think of an interpretation that makes this correct. Please define what you mean by the "rate of fall". PD |
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#6
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#7
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| Steve Ralph wrote: Tower the That *still* is not precise enough. Here are some choices: 1. The time elapsed for the bodies to fall the same distance is the same. 2. The final velocites the bodies have at impact will be the same. 3. The rate of change of the velocities (the acceleration) of the bodies will be the same. 4. The average velocity of the bodies over the distance of the fall are the same. What quantity is he referring to here? |
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#8
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| PD wrote: Whereas the acceleration of free fall (g), here on Earth is the average time rate of change, in a rate of change in position, where g=(vt-vi)/(2t)=32.174'/sec^2; the rate of free fall is (more simply) the rate of change in position, where g/2=s/t^2=16.08'/sec^2. Don |
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#9
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#10
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