Write true or false for the following statement:​

A wet oily road offers more friction than a dry rough road.​

Q. Write true or false for the following statement:​

Liquids offer more friction than gases.​

Q. Write true or false for the following statement:​

The sliding friction is more than the rolling friction.​

Q. A car will skid more on a wet road than on a dry one because, between the dry road and the car tyres there is more:

Q. On a dry road, the maximum permissible speed of a car in a circular path is $10m{s}^{-1}$ and speed is $5\sqrt{2}m{s}^{-1}$ on wet surface of the same road. If the coefficient of friction for dry road is $\mu$ , then that for the wet road is:

Q. Write true or false for the following statement:​

The force of friction is always disadvantageous.​