Question

why are tyer circular in shap ?
(a)they require less material
(b)rolling friction is smaller then sliding friction
(c)it is easy for circulartyer
(d)none​

Answer 1

Answer:

option b is correct

Explanation:

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Answer 2

Answer:

Answer:Tyres move by rolling. And the circular shape is the most appropriate one for this purpose as it maintains a uniform and smooth contact with the surface. Any shape other than round- think square, rectangular, hexagonal etc- has edges or points that dig into the road. This makes movement slower.

Answer:Tyres move by rolling. And the circular shape is the most appropriate one for this purpose as it maintains a uniform and smooth contact with the surface. Any shape other than round- think square, rectangular, hexagonal etc- has edges or points that dig into the road. This makes movement slower.Hope it helps you..