If a balloon has equal force in a d out the air opening,why wont the two forces cancel each other out
The forces exerted by the air inside the balloon and outside the balloon will not cancel each other out because they act in different directions.
When the balloon is inflated, the air inside the balloon exerts an outward force on the balloon material, trying to expand it in all directions. This force is balanced by the elastic properties of the balloon material, which exerts an inward force, preventing the balloon from bursting.
On the other hand, the air outside the balloon exerts an inward force on the balloon material, trying to compress it. This force is also balanced by the elastic properties of the balloon material, which exerts an outward force, preventing the balloon from collapsing.
So, even though these two forces are equal in magnitude, they act in opposite directions and do not cancel each other out.
The forces acting on the balloon are actually not equal but opposite in direction. When the balloon is filled with air, the air inside the balloon exerts pressure in all directions, including outward towards the balloon walls. This pressure creates a force that pushes the balloon outward.
On the other hand, the air outside the balloon also exerts pressure inward towards the balloon, trying to collapse it. This external pressure acts in the opposite direction to the force created by the air inside the balloon.
So, the forces are not canceling each other out because they are acting in opposite directions. However, they do balance each other out, resulting in a state of equilibrium where the balloon neither expands nor collapses.
When a balloon is filled with air, the air inside the balloon exerts a force on the inner walls of the balloon. This force is known as the internal pressure. At the same time, the air outside the balloon exerts an equal but opposite force on the outer walls of the balloon. This force is known as the external pressure.
Now, let's address your question regarding why these two forces do not cancel each other out. The key to understanding this lies in the fact that the forces are applied on different surfaces of the balloon.
In simple terms, when the balloon is filled with air, the internal pressure pushes outwards on the inner walls of the balloon. At the same time, the external pressure pushes inwards on the outer walls of the balloon. These forces act perpendicular to the surfaces they are applied to.
Since the internal pressure and the external pressure act on different surfaces of the balloon, they do not cancel each other out. Instead, the forces are balanced, causing the balloon to maintain its shape. If the forces were to cancel each other out, there would be no net force acting on the balloon, and it would neither expand nor contract.
It's important to note that if one of the pressures were to exceed the other, the forces would no longer be balanced. For example, if the internal pressure became stronger, it could overcome the external pressure and cause the balloon to expand. Conversely, if the external pressure became stronger, it could compress the balloon.
In conclusion, the forces exerted by the internal and external pressures on a balloon do not cancel each other out because they act on different surfaces of the balloon. Instead, they balance each other, allowing the balloon to maintain its shape.