How is friction affected by the area and nature of the surfaces in contact, velocity and weight of the object?

Question

anonymous · Answer

1st of all friction is the force e against the accelation of the body or particle from the the surface in which a body tries to accelerated.

1. as the friction acts on the surface on which the body depends to move and on the surface of medium it moves....it depends directly on the area and nature of the surfaces in contact...u can feel it when u walk on street and walking in the slepy floor of ur home..

2. the frictinal force a moving body is called kinetic frictional force..and its less than static frictional force..

3.as f=$$\mu$$*n 
 here f is frictional force and n is the  reply force of the surface to the body..the more the weight is the more the reply force is..as a result the frictional force will be more..  



here is some pics to clear the topic...( i dont no , wether my post cxan help u or not.. but i tried my best..)

anonymous · Answer

Thanks :D