While driving a convertible (with the top down) at 80mph a fly was hovering by the passenger seat. Why can't i leave it behind even if i accelerate the car?
2006-09-27 10:00:01 · 12 answers · asked by ★ Alvin ★ 1 in Science & Mathematics ➔ Physics
A phenomenon known as a "static bubble" form in the passenger area of a convertible with the top down. Basically the air is pushed over the top of the windshield and comes back down around the trunk area. The area in between where you and the fly are is a bubble of relatively stable air.
Oddly enough, this same phenomenon happens in the bed of full sized trucks. Because of this it is a myth that you get better gas mileage out of a truck if you drive with the tailgate down.
2006-09-27 10:05:26 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The fly does not possess much mass. Therefore it's movements are more influenced by the air in the car, than acceleration / deceleration forces. Although you had the top down, the air down by the seat will be pretty stable as a result of the windscreen etc. If the fly was a heavy inanimate object it would have moved to the back of the car when you accelerated, but because the air moves with the car and remains stable, so will the fly.
2006-09-27 10:04:35 · answer #2 · answered by The Golden Child 1 · 0⤊ 0⤋
In a convertible you could easily leave the fly behind. The turbulence caused by an 80 mph wind sweeping over the car would whisk any airborn object away. In a closed car however, the air inside the car is moving at the same speed and in the same direction as the car. Therefore its speed relative to the car is zero. Therefore the fly could hover inside the car.
2006-09-27 10:14:56 · answer #3 · answered by barbara m 3 · 0⤊ 0⤋
Because the air in your car is moving at 80 mph and carries the fly along. You can only leave the fly behind if the fly moves above the level of the air contained in the body of your car.
2006-09-27 10:02:38 · answer #4 · answered by DavidK93 7 · 1⤊ 0⤋
relies upon on what variety of convertible and how previous the youngster is. If the youngster is interior the backseat, that is particularly secure. If that could be a 2 seat convertible (Miata, Solstice, 300Z, etc), then i do no longer propose the youngster sitting up front with you. additionally, in no way placed a rear dealing with baby seat interior the front. The airbag will wreck the youngster's neck.
2016-10-18 02:18:50 · answer #5 · answered by Anonymous · 0⤊ 0⤋
because there is a small air pocket that is made when driving with the top down that moves with the car. Anything within that air pocket will move relative with the car, much like as if the top was up.
2006-09-27 10:03:24 · answer #6 · answered by ohmneo 3 · 1⤊ 0⤋
The fly could be out of the slipstream to pull him free
2006-09-27 10:02:00 · answer #7 · answered by Anonymous · 0⤊ 0⤋
It sounds like your brand of convertable is designed to be aerodynamic so that the wind won't blow your hair all around.
2006-09-27 10:08:49 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Uh, because the windsheild was keeping the inside calm.
2006-09-27 10:05:32 · answer #9 · answered by haliangel123 2 · 0⤊ 0⤋
It was in a place where it was protected from the wind.
2006-09-27 10:03:39 · answer #10 · answered by DrBob 3 · 0⤊ 0⤋