Question

Notches are carved on the tyres of vehicles because
1. To make the tyres look beautiful
2.to increase friction
3.to decrease friction
4. To raise speed

Answer 1

The correct answer is option 2 – to increase friction.

 

The notches are carved on the tyres of vehicles in order to increase the grip of the tyre and the friction of the tyre when it is on the road so that the vehicle does not skid away.

When the friction is high, the vehicle tends to maintain a better balance.

 

The friction can be increased by increasing the number of ridges and grooves.

Answer 2

Thank you for asking the question.

The notches are carved on tyres of vehicles in order to Increase the friction.
Friction is the necessary part of the world when there is a vehicle on road there will be the friction between road and tyre. And in order to increase the grip of the tyre on road on the wet road to avoid the tyre slipping these notches are made curved.
Hope  this will help you.