Help please.?

Question

A helium balloon floats inside a motor-car whose windows are closed, and which moves in a straight line at constant speed. How will the balloon be affected if the car tuns to the left at constant speed?
(i) moves to the left, (ii) moves to the right, (iii) moves straight ahead, (iv) remains stationary.
Please consider the following cases: (a) the balloon is touching the car's roof, (b) the balloon does not make any contact with the car as it floats (a small weight keeps it from rising all the way to the roof.)
A brief explanation will be greatly appreciated.

Answer 1

VERY DIFFICULT QUESTION ?????????????????

Answer 2

We just went over this in my Physics class. Newton's First Law, an object in motion tends to stay in motion unless another force acts upon it. Although from inside the car it would seem the balloon is not moving, it is moving at the same spped as the car is. A force can be defined as a change in speed or a change in direction. The speed is constant, but the direction changes so a force is acting on the car. The force however is not acting directly on the balloon so it will want to continue going straight. When the balloon is touching the roof of the car, the force effecting the car will have some pull on it so in case (a), the balloon will move slightly left. But when the balloon is free floating in case (b), it will keep going straight until it hits the side of the car.

Answer 3

The key thing to remember here is that helium is lighter than air. As the car accelerates (which is what happens when it turns) the air will tend to get left behind. So if the car turns left, the air will accumulate on the right side and there will be a pressure gradient right to left. The balloon will move up this gradient just as it does in the air, so it will move left.

Similarly, if the car breaks, the air will mover forward creating a pressure gradient front to back - the balloon will move backwards.

Touching the ceiling will not make any difference unless the material makes the balloon stick to it.

By the way, its a terribly easy experiment to perform and the effect is quite large and easy to see. But if you want an easy way to see the same thing at home get a spirit level and spin in a circle with it - the bubble will move towards you not away, for exactly the same reason.

Answer 4

This will depend on many things.

If balloon has no inertia(relatively zero) it will stay put.

If air inside moves due to it own inertia the balloon will move with it.

If balloon has inertia it will move because of the change in the direction of inertia(mv=mass x velocity).

The whole car has to bank so balloon will bank also, no different then the riders in the car or any vehicle.

Answer 5

it moves left, think about babbole of gase in a liquid, the ballon is the same thing.when you turn left the centrifugal force is pulling it to the right. the gravittional force + the centrifugal can be considered as a new gravitational force. the ballon will try to go up this force and he will muve up, but the force is twords right so the ballon goes to the left. all casses are the same.

Answer 6

My guess is that the balloon stays in place, it's the car that moves.

Answer 7

moves straight ahead..because the motion remains as is for the balloon.

Answer 8

the answer is just a inertia. everything that have mass have the inertia. the only way the ballon will be affected the the movement of the car is just of the inertia.. this is just the third law of newton law.

Answer 9

take a pin and prick it 100% sure it will hit the floor man!

Answer 10

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