Question

why do the load carrying heavy vehicles have large number of wheel​

Answer 1

Answer:

pressure = force/ area

it means

if if area will increase the pressure will be small and if

area decrease it will fell large pressure

now according to this concept

if the vehicle carring heavy load produce large pressure on tire if they are small and less in counting. but if the number of tires are increase the pressure exerted by truck on ground and tire will get distributed and does not get any harm

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Answer 2

Answer:

As the load heavier there will lot of pressure exerted on the ground.

Few wheels can't hold that, that's why there are lots of wheel under the wheel.

Explanation:

More wheels are there because pressure.