First Flying Car to be On Sale 2015



wayn3 said:
Thats not even physically correct because the velocity at which stuff falls doesnt depend on its weight.
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Falling depends on air resistance and the aerodynamic of what is falling. But again, you are the only person talking about falling - where I am talking about what's needed to take off the ground. If you don't realize that cars are build so they stay on the ground at high speeds... I dunno what to tell you... Imagine putting a car engine on an object not designed to stay on the ground - that'll end nicely for granny...

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Good luck bro...​
 
well the one that already exists you need a light aircraft licence to fly, so i doubt the new ones will be exempt from this regulation.
 
wayn3 said:
Thats not even physically correct because the velocity at which stuff falls doesnt depend on its weight.
Click to expand...

Um, yes it does. For a stationary object to change position, it requires force and in this case, the force is acceleration due to gravity x mass and force exerted on the object by gravity IS weight. Hence, proportional.
 
Never gonna happen.

Arguments against
Number 1: Idiocy. Yuu really think all the dumb fucks on the road should be given planes? I don't fancy having a drunk idiot flying into my living room.

Number2: Falling. They say there is a parachute system.. well, that is not gonna help you in low altitudes. Fallign from 20 meters (60 feet) with that kind of velocity is not going to be fun.

::emp::
 
SideGeek said:
Um, yes it does. For a stationary object to change position, it requires force and in this case, the force is acceleration due to gravity x mass and force exerted on the object by gravity IS weight. Hence, proportional.
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In the absence of air resistance, an elephant and a feather dropped from the same height will fall at the same speed and hit the ground at the same time. The elephant will experience more force, but its larger mass means the acceleration is the same (one pretty pathetic 'explanation' but see below for math).

In F=ma, the mistake is to think that 'a' is a variable when talking about a planet's gravity. 'a' is not a variable, it is the planet's gravitational acceleration determined by GM/r2. (G is the gravitation constant, M is the planet's mass, r is how far you are from center of gravity of planet).

In fact, you can show that 'a' doesn't depend on the object's mass (elephant, feather, whatever) by F=ma=GMm/r2. This reduces to a=GM/r2

You probably won't believe me, so take a look online at the elephant/feather/etc examples and explanations.

As for air resistance, lift (do you, bro?) and aerodynamics, they are a hell of a lot more complicated.

Not sure why I logged in after months just to post this. I guess this is what 'retirement' must feel like.
 
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