Under what conditions rolling friction increases? Maximum 6 points............

Rolling friction is the frictional force that results in the slowing down of a rolling object on the surface. For instance, when the wheels of the vehicle roll on the ground without any external applied force then the wheel finally stops after travelling some distance. This is because of rolling frictional force exerted by the ground on the wheels. So, by increasing the roughness of the surface, the rolling friction can be increased.

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