Coefficient of kinetic friction of a block

[landry]

Mk

Homework Statement

The coefficient of kinetic friction of a block depends on:
A. normal force.
B. surface area of the 2 materials
c. mass of block
d. speed of block
e. what the 2 materials are made of

Homework Equations

The Attempt at a Solution

SInce friction of a block depends on what the 2 materials are made of then i believe the answer would be E since Mk is a type of friction

 

[dynamicsolo]

The coefficient of kinetic friction of a block depends on:
A. normal force.
B. surface area of the 2 materials
c. mass of block
d. speed of block
e. what the 2 materials are made of


SInce friction of a block depends on what the 2 materials are made of then i believe the answer would be E since Mk is a type of friction

Among the choices available, I'd agree that (e) is correct.

 

[ogb p]

that occurs when two surfaces are in contact and moving relative to each other. The materials that make up the surfaces can affect the roughness and adhesion between them, which in turn affects the coefficient of kinetic friction. For example, surfaces made of rubber and glass will have a different coefficient of kinetic friction compared to surfaces made of rubber and steel. Therefore, the answer would be E.