If you were in your car, and there was a fly flying around inside the car (but not landing on anything), and you accelerated to 100 mph, would the fly have to fly 100 mph to keep up with the car to remain in the air? Why would he have to do that outside the car but not inside?
2007-04-27 10:56:00 · 4 answers · asked by FUNdie 7 in Science & Mathematics ➔ Physics
While accelerating up to 100 mph, the fly would feel an inertial force pulling it backward, just like you do when you are accelerating forward. Once at a constant velocity, the fly does not have to fly at 100 mph with respect to the car. The reason why, is because everything in the car, including the air and everything in the air, is also moving at 100 mph with respect to the ground. It's like a 100 mph wind pushing the fly along.
Keep in mind, the earth is moving around the sun at nearly seventy thousand mph and spinning around at over 1000 mph. A fly hovering above the ground doesn't need to fly at those speeds, because the air it is in is also moving at over 70 000 mph and if it is at rest with respect to the air, it is moving at 70 000 mph with respect to the sun.
2007-04-27 11:53:37 · answer #1 · answered by Michael S 2 · 0⤊ 0⤋
easy... in the car... the air inside will also speed up to 100mph (if windows are closed)... so the air at point A in the trip is moved to point B.... so the fly doesnot have to be a superfly (superman ;) ) ... outside... the fly has to resist the air and fly at 100mph to catch up...
get it??
2007-04-27 10:59:56 · answer #2 · answered by Anonymous · 1⤊ 0⤋
There is less air friction in the car than outside
2007-04-27 11:00:12 · answer #3 · answered by JG1989 2 · 0⤊ 0⤋
Car wheels turning bringing the complete unit in intireity. like if you're strolling , does your slava stay in the human unit or is the slava independant. Spit traveling thro the air = independant, yet if brought in a mouth is non independant
2007-04-27 11:04:38 · answer #4 · answered by Anonymous · 0⤊ 0⤋