Hi Italis,
We are on the same page if not the same verse.
Another example, it's like looking at a real apple and a fake apple sitting on the moon through a telescope and since you are detecting no change, saying that both apples are real based on only visual observation, through one instrument, and then through our eyes, which inherently aren't perfect. However, if we were actually on the moon right beside the apples, we could probably tell which one was fake just by observation. So it depends on how "accurate" the instrument is and also if it's giving us all the information that we need, feel of the apple, weight of the apple would definitely help determine if one was fake.
Yes, but there is NO experiment, even theorecically, which can differentiate between "Real" and "Apparent" weight. They will both make a mass accelerate in the normal direction in the relevent FofR. They will both make a mechanism distort and give the same reading on a scale. Without perfect instrumentation, things appear to be the same. Without any WAY of differentiating between two things, they ARE the same.
I think you might be meaning the same thing I am but just saying it differently. "Real" and "apparent" are relative to your FoR. Does any of this make sense?
Exactly.
An observer on the ground would observe the aircraft in a 2g turn, whilst ALSO feeling the force of his own mass times gravtiy, evidenced by the scales HE is standing on. He would assume the Pilot he is observing has 200lbs "Real" weight, and another 200lbs "Apparent" weight.
Now take an observer in a uniform acceleration due to gravtiy (yes, yes, gravity gradient, but close enough). The scales HE is standing on read zero. He observes the aircraft not only turning, but also in a uniform vertical acceleration.
He ALSO concludes the pilots scales reads 400lbs, but all of it "Apparent".
From the Plots POV, it's ALL "Real".
As such, it seems the whole concept of "Apparent' weight is relative to the observer, and the absolute term is, well, just "Weight"!
ETA do YOU have any idea what PBL is trying to say?