Question

why On applying small force balloon gets inflated whereas on increasing the force it bursts.​

Answer 1

Answer:

Blowing up a balloon involves forcing additional air particles from your lungs into the balloon. These particles hit the inside walls of the balloon creating enough air pressure to force the rubber of the balloon to expand and the balloon to inflate.

Answer 2

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An inflated balloon burst even with a small break of a pin because the surface area of pin is very small .

So the pressure increases and the balloon burst.

$\huge \mathcal \colorbox{lightgreen}{hope \: it \: helps}$