Question

why is the pressure is the same at all points on the inside wall of tyres​

Answer 1

Explanation:

For the car to move, there has to be friction between the tyre and the road. ... In molecular terms, molecules in the tyre collide with the tyre wall resulting in a force, and therefore, pressure on the tyre wall.

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Answer 2

All places on the inside wall of the tyre experience the same pressure because the pressure inside the tyre is equalised and distributed uniformly throughout the interior of the tyre.

• As the air molecules inside the tyre are constantly moving and colliding with one another and the walls of the tyre, the pressure is uniform throughout the inside wall of the tyre.
• The pressure rises as the air molecules are pressed closer together when air is injected into a tyre.
• As the increased pressure is equally distributed throughout the tire's interior, the force that air molecules exert on the tire's inside wall is constant throughout.
• The tire's flexible rubber compound may expand slightly to make room for the increased pressure within.
• This expansion equalises the pressure across the inside wall of the tire's surface area, ensuring that it is the same everywhere.
• The air molecules inside the tyre are also unable to leave since it is a closed system.
• This equalisation and distribution of pressure throughout the tire's interior leads to the same pressure at all spots along the interior wall of the tyre.

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