2006-09-22 02:51:39 · 10 answers · asked by Jojomon 2 in Education & Reference ➔ Higher Education (University +)
you're getting a lot of wrong answers- but I think that's because you didn't really ask the right question.
If the car is moving at a constant velocity- they're all right, the helium balloon won't move.
When the car is accellerating, the air in the car will be pushed to the back and will create a higher density region near the back of the car. The balloon will actually move forward, towards the lower pressure air, as the filled helium balloon is lighter than air.
When the car decellerates, the balloon will move towards the back of the car. Basically, it moves in the opposite direction of what you would expect
2006-09-22 03:02:23 · answer #1 · answered by Morey000 7 · 1⤊ 0⤋
Nothing moves except in the direction of the air that is inside the car that is also moving at the same speed if the item like a balloon is floating in air. Helium balloons go up in a car and forward, a non helium down and forward, but most will attach themselves in the direction of the car with the most static electricity (positive ions) that attract them the most. Sometimes your hair after it is freshly washed and dry.
2006-09-22 09:56:17 · answer #2 · answered by careercollegestudent69 4 · 0⤊ 0⤋
The balloon is in the air inside the car.The fact that the car is moving doesn't change the way that someone in the car sees it going (even though its path along the ground is the car's path along the road).
So you get the same answer whether the car is parked or moving along the road. The balloon inside the car goes where ever it is pushed by someone in the car. If it is not pushed it probably just floats up to the car's headliner.
2006-09-22 09:55:54 · answer #3 · answered by Rich Z 7 · 0⤊ 1⤋
in a moving car, assuming the windows are closed, the helium balloon will not move because everything inside the car, including the air inside the car, is traveling at the same velocity as the car itself. just as you hair doesn't blow in the car (unless the AC is on) a helium balloon will not move.
2006-09-22 09:57:13 · answer #4 · answered by Josh C 3 · 0⤊ 1⤋
If the car is moving constant speed, the balloon wouldn't move. If the car accellerates, the balloon will move in the opposite direction. The force of accelleration causes the car to move relative to the balloon.
2006-09-22 09:53:41 · answer #5 · answered by nondescript 7 · 0⤊ 1⤋
The hellium balloon being lighter than air will rise up. So if u are inside the car it will rise up vertically assuming the car is at constant velocity. But if the car is accelerating it will rise up sideways away from you. To a person standing outside it will appear to rise sideways no matter what.
2006-09-22 10:07:40 · answer #6 · answered by ratface 1 · 0⤊ 0⤋
The balloon will move to the rear of the car if the car is moving forwards.
2006-09-22 09:53:32 · answer #7 · answered by Brian Reed 3 · 0⤊ 2⤋
Inetria!
2006-09-22 09:53:55 · answer #8 · answered by jrrm1975 2 · 0⤊ 0⤋
its from the middle pat of the car
2006-09-22 09:55:18 · answer #9 · answered by shashi_s14 3 · 0⤊ 0⤋
Morey's right...we just understand this stuff.
2006-09-22 10:10:01 · answer #10 · answered by Professor 3 · 1⤊ 0⤋