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Old 03-23-15 | 11:42 AM
  #54  
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Brian Ratliff
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Joined: May 2002
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From: Near Portland, OR

Bikes: Three road bikes. Two track bikes.

Originally Posted by greenlight149
Ok I guess you didn't see my equations

Force=mass x acceleration
acceleration= force/mass
Substitute for force you get acceleration=mass x acceleration/mass (a=mg/m)
Giving you a=g which is the gravitational constant

This is true for two objects with with same coefficient of drag.

And you are right, this isn't a new problem, it's been known for a long time that gravitational acceleration is independent of mass, given the same coefficient of drag.
I don't see anything related to drag force in your getup there. Show me how the accelerations are identical taking drag into account mathematically. Take a look at my links and show me where I'm wrong.
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