Question

Briefly explain why the tyres of tractors are large and wide?

Answer 1

In order to solve this question, we should know about pressure. In physics, pressure is defined as the amount of force acting on a surface per unit of the area of surface, here we will use the concept of force and pressure to know the reason behind having large and wide tyres of a tractor.

Complete step by step answer:
Pressure is the ratio of the amount of force and surface area acting on a body and mathematically it can be written as $P = \dfrac{F}{A}$ where P, F, A represents pressure, force, and area of the surface.
Here we see that, pressure is inversely proportional to the surface area as $P \propto \dfrac{1}{A}$
So, when tyres of tractor are large and wide they have large surface of area, and we see that larger the surface area A, smaller the pressure acting on the surface as $P \propto \dfrac{1}{A}$ so, having large surface area of tyres reduce the pressure acting on the tyres and ground which reduces the damage produced on the ground by the tyres and tractor can run smoothly with large force.
Hence, due to the large surface area of large and wide tyres of the tractor it impacts very less pressure on tyres and thus enables the tractor to run with large force smoothly on the ground without much damage on the tyres of the tractor.

Note: It should be remembered that, generally tractors are used to carry large loads so, they require very large amount of force to run and in this if tyres were small, large amount of pressure acts on tyre which can easily damage the functioning of tyres hence, they are made wide and large to support such large loads on tractor.