Question

Why more number of wheels are set on heavy vehicles​

Answer 1

Answer:

Heavy vehicles carrying load have large number of wheels is to reduce the pressure on tyres. Pressure is the measure of force acting per unit area. This will help in the smooth motion of vehicles and protect the wheels from excess wear and tear.

Answer 2

Heavy vehicles carrying load have large number of wheels is to reduce the pressure on tyres. As the area in which force is exerted will increases, the pressure will decrease.

Explanation:

• Heavy vehicles have many wheels because, the weight of the heavy vehicle needs to be distributed equally and less energy is consumed to carry the load inside the vehicles.
• More number of wheels are on heavy vehicles because, greater the area of contact between two surfaces, lesser will be the pressure.
• So, the load-carrying heavy vehicles have a large number of wheels so that the pressure on the road is reduced due to the larger contact area.
• Also, using a large number of wheels ensures that the force due to the load is shared among the tyres and no single tyre is under stress.