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Murtuza Tipu
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Why is it hard to get the air through the balloon when you first fill the balloon ? But after inflating it z bit it becomes easier to further inflate ?
The rubber is not linearly elastic. Initially there is some plastic deformation of the thick rubber, which requires more pressure. When you deflate it, and inflate for a second time, it is easy from the start because the rubber is thinner already.Murtuza Tipu said:Why is it hard to get the air through the balloon when you first fill the balloon ? But after inflating it z bit it becomes easier to further inflate ?
When you first start inflating a balloon, you are essentially trying to force air into a small, confined space. This requires energy and work to overcome the resistance of the rubber balloon.
The initial resistance when filling a balloon is caused by the elasticity of the rubber material. As air is blown into the balloon, the rubber stretches and pushes back against the air, creating a force that makes it difficult to inflate the balloon.
As the balloon gets bigger, the surface area of the rubber also increases. This means that there is more space for the air to fill, and less resistance from the rubber. Therefore, it becomes easier to inflate the balloon as it gets bigger.
Yes, there is a limit to how much air can be filled into a balloon. This limit is determined by the elasticity and strength of the rubber material. If too much air is blown into the balloon, the rubber will eventually reach its breaking point and burst.
Stretching a balloon before filling it creates tiny cracks in the surface of the rubber. These cracks provide a release for the air, making it easier to inflate the balloon as there is less resistance from the rubber.