Question

Why do new automobile tyres have deep grooves ?​

Answer 1

Answer:

automobile tyres have deep grooves so that the tyres can grip over the road and land.

Explanation:

due to these grooves you are being able to apply brakes otherwise the brakes would not be able to work. these grooves also help in moving as you might have seen small hard particle type/sand type thing on the roads which get locked in those grooves and finally you can move easily with speed and by applying brakes. remember to put an helmet on head!

Answer 2

Answer:

To increase Friction

Explanation:

Deep grooves helps to increase friction while applying brakes.

As the tires becomes older the grooves and ridges start becoming plain and the friction decreases. this happens because friction cause wear and tear

Hope This Answer Might be helpful...