Do Friction Forces Have Units?

In summary, friction is a force and therefore has units, specifically the same units as any other force, such as Newtons. The coefficient of friction, represented by the symbol U, has no units.
  • #1
AirHendrix
8
0

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.
 
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  • #2
U is the coefficient of friction.It is the ratio of two dimensionally similar quantities, just like refractive index. So it has no units.
 
Last edited:
  • #3
AirHendrix said:
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.
 
  • #4
^ What units would the force of friction have?
 
  • #5
AirHendrix said:
^ What units would the force of friction have?
The same units as any other force.
 
  • #6
Doc Al said:
The same units as any other force.

So Newtons then?
 
  • #7
AirHendrix said:
So Newtons then?
Exactly.
 

Related to Do Friction Forces Have Units?

1. What is friction?

Friction is the force that resists the relative motion or tendency towards motion between two surfaces in contact.

2. Why does friction occur?

Friction occurs due to the irregularities or roughness present on the surfaces in contact, which causes resistance to motion.

3. Does friction have units?

Yes, friction has units. It is measured in units of force, such as newtons (N) or pounds (lbs).

4. How is friction related to surface area?

Friction is directly proportional to the surface area of the objects in contact. This means that larger surface area results in greater friction.

5. Can friction be reduced?

Yes, friction can be reduced by using lubricants, making the surfaces smoother, or applying a force in the opposite direction to the motion.

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