This gif me of the question I once had but never seemed to get an answer for.
Let’s say there is a car is driving 100kph, and the wind is blowing in the same direction also at 100kph. If the driver put their arm out the window, would they feel any wind, or would it feel just like it would if the car were to be stationary?
yes. ever been sailing?
JTQ said:
or would it feel just like it would if the car were to be stationary?
Yes
2 seconds.
JudgeMental said:
yes. ever been sailing?
no.
whats the sound of one one hand clapping?
a “high five”
That’s a simple answer then. Cheers :)
I’ve done a lot of travelling around the state (and interstate) over the last 15 months but never tried to travel at the same speed as the wind and put my arm out the window to see how it feels.
Might give it a go next time.
JudgeMental said:
2 seconds.
It was a mistake editing the quote.
wookiemeister said:
whats the sound of one one hand clapping?a “high five”
Unless you’re a Simpson. Then it’s a high four.
JTQ said:
wookiemeister said:
whats the sound of one one hand clapping?a “high five”
Unless you’re a Simpson. Then it’s a high four.
Or a Japanese poem. Then it’s a high koo.
in sailing if you have a light breeze coming from behind it can get awfully hot, you sail in summer cos it is nicer, because you are going nearly as fast as the breeze. so no cooling effect.
JTQ said:
JTQ said:
wookiemeister said:
whats the sound of one one hand clapping?a “high five”
Unless you’re a Simpson. Then it’s a high four.
Or a Japanese poem. Then it’s a high koo.
JudgeMental said:
in sailing if you have a light breeze coming from behind it can get awfully hot, you sail in summer cos it is nicer, because you are going nearly as fast as the breeze. so no cooling effect.
Fair enough :)
Last time I went on a boat was a speedboat on the Murray, and it was umm… hmm… 9th January last year. Brooke and Maddi and I were taken down the river to find koalas, but went a lot faster than the light breeze at the time.
JTQ said:
This gif me of the question I once had but never seemed to get an answer for.
Let’s say there is a car is driving 100kph, and the wind is blowing in the same direction also at 100kph. If the driver put their arm out the window, would they feel any wind, or would it feel just like it would if the car were to be stationary?
1. If the wind could blow at 100 kph then it would feel as if the car was stationary.
2. But because of both wind shear and wind turbulence it is very easy to distinguish between the cases of the moving car and the stationary car.
mollwollfumble said:
That’s why you never got the answer you wanted.
How did you work out what answer he wanted?
These aren’t the answers you’re wanting for.
The wind can’t blow at 100 kph. That’s why you never got the answer you wanted.
LOL. Don’t ever do physics with perfect spheres, in a vacuum with no friction then. sheesh.
JudgeMental said:
The wind can’t blow at 100 kph. That’s why you never got the answer you wanted.LOL. Don’t ever do physics with perfect spheres, in a vacuum with no friction then. sheesh.
What he wanted was that because of frame of reference you can’t tell the difference between the two cases.
no, he was posing a hypothetical. that is all.
“ Don’t ever do physics with perfect spheres, in a vacuum with no friction then. sheesh.”
There are a couple of experiments I’d love to do in a vacuum with perfect surfaces, the first one being the testing of a superconducting mirror for space applications. Even a mirror of lithium would suffer degradation due to oxidation if tested in air, and in an inert atmosphere there’s the concern that the atmosphere molecules could affect the surface reflectiveness.