Why are wheels of cars, buses etc. are made circular ?

to minimize friction

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too add more electrostatic force

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no particular reason

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circle looks better

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Solution

The correct option is A to minimize friction
To minimize the friction between road surface and wheel surface, Wheels are designed circular. If wheels are designed in other shape, for eg: hexagonal, rectngular then the motion of the vehicle will not be smooth and more disturbance will be experienced by the passengers. Because more resistance will be created between surface of road and wheel.

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The rear of buses and trucks are provided with double wheels or even more. This is provided in order to:

Statements:

All clocks are pens.

Some pens are tyres.

Some tyres are wheels.

Some wheels are buses.

Conclusions:

I. Some buses are tyres.

II. Some wheels are pens.

III. Some wheels are clocks.

IV. Some buses are pens.

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