Recent content by ntd252

I know. Read again my post. The book page sticks to the wet finger, because of friction is increased. I want to understand that, why can water reduce friction and increase friction?how does water affect surface between road and car's tire?

Hello everyone! I am Duong (Dương), I am from Vietnam, 16 years old. So my English grammar isnot good, i am sorry! I have some problems about friction, I can't understand. First, when the road is slippery after the rain, the car or orther verhicles (in the road) are very difficult to drive...