Do Friction Forces Have Units?

[AirHendrix]

Homework Statement

Does Friction have units?

Homework Equations

U = Ff / Fn

The Attempt at a Solution

I know the coefficient which is "Mew" U, has no units whatsoever but I just wanted to know if friction itself had units.

 

[rl.bhat]

U is the coefficient of friction.It is the ratio of two dimensionally similar quantities, just like refractive index. So it has no units.

 

[Doc Al]

I know the coefficient which is "Mew" U, has no units whatsoever but I just wanted to know if friction itself had units.

What do you mean by "friction itself"? The force of friction certainly has units, just like any other force.

 

[AirHendrix]

^ What units would the force of friction have?

 

[Doc Al]

^ What units would the force of friction have?

The same units as any other force.

 

[AirHendrix]

The same units as any other force.

So Newtons then?

 

[Doc Al]

So Newtons then?

Exactly.