Question

advantage and disadvantage of frication

Answer 1

Advantage - Friction helps to stop a moving object.
Disadvantage - Friction produces heat which sometimes lead to damages of vehicle or machine

Answer 2

the advantage of friction is that they are
1)we can't walk if there is no friction
2) with out friction we can't hold pen or pencil
the dis advantages are
1) due to more the engine of motor bikes will be damaged
2)more friction don't enable us to write,walk