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| Tags: speed, walk |
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On Aug 2, 5:56 am, "mmddll" wrote:
The wheel moving is an "event" relative to either distance traveled (how many "revolutions" between point A and point B) or (if spinning your wheels in the mud) revolutions of the wheel itself in motion relative to a stationary object (the engine block) I agree. This is common sense. Yes if you count the revolutions of a wheel, from point A to point B, the number of revolutions will be the same regardless of speed. The only measurable thing here being the revolutions and the distances. I.e Number of revolutions, as well as the distance travelled of the revolutions as well as the distance of the road. Of course the speedometers on a car, are caused by a gear ratio which work out to Newtons idea where Velocity = distance / time. The physical calculation of which is utimately calculated by distances, say the ratio of the diameter of one gear compared to the other which causes the speedometer to move up and down. We all agree that a speedometer works with gears right ? Hypothetically, the odometer could be used as a clock in either case if the revolutions are at a constant rate (no fluctuation in speed or distance). The odometer is a clock/ except that it can go faster or slower. Speed is given as a function of V=d/t. But ultimately, the quicker you move between point A and point B, on the surface of Earth, you move a shorter distance in the solar system. So to me its more about distances than time. If i were to walk across the USA It might take 1 year. Or if I were to drive it would take 3 days. The radius of the earth from the sun is approx 150 million km. Over 365 days I will have travelled from Seatle to New york a distance of 2 x 3.141592654 (pi) x 150Million = 942, 477 796 Which is almost a billion km's Over 3 days I will have travelled from Seatle to New york a distance of 7, 746 392 Kilometres. . 942, 477 796 / 365(days in the year) x 3days = 7, 746 392 km's And as you can see, a simple matter of where you place the model for "time" you will result in just as valid a system for a mathematical proportion of speed. I might also say that. . . 942, 477 796 divided by 7, 746 392 The car was therefore driving 121.66 times the speed of walk. How fast on average can people walk before they must begin to run ? In this case I have not used time once. I have simply used 365 solar days, which is a solar year as well as 1 orbit of the planet around the sun. When your running around to catch up with the sun but its sinking. . .shorter of breath and one day closer to death. Every year is getting shorter ? Never seem to find the time ? |
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