Why is it so much harder rot blow up the long straight balloons than the round ones?
In: Physics
because the round ones expand in all directions but the long ones expand in mostly only one direction which takes way more energy to stretch the plastic
also all parts of a round balloon stretch at the same time, the long bois start with one end, always only stretching one smaller fraction, which reduces the needed energy as well
The short answer is that you apply the same pressure from your lungs in both of them, but the round balloon has more surface, so it integrates more force as f = p * s. That leads to the fact that with the pressure you have to put to start inflating the cylindrical one, the round balloon would have start long before and very easily. So the correct answer is: ‘because long balloons have a much smaller surface’. In the same way, a cylindrical balloon is hard to start, but once is starts, it goes pretty easy since it has become spherical (more or less) and has more surface to put the pressure on.
Latest Answers