Question

The wheels of automobiles are made circular. Why?

Answer 1

Rolling friction:

1. The force resisting the rotation of a rolling item on a surface is known as rolling friction.
2. To lessen the frictional force, automobile wheels are designed to be rounded. Wheels are made to be round because rolling friction is preferable than sliding friction.
3. The movement of cars and other vehicles would have been more difficult and friction-producing if the wheels had been of a different design.