What's an MU?

[madmax]

miss-understood.

 

[majorbumsore]

now that was worth 12 quids all on its own.

 

[original_concept]

MU = Muppet User

 

[Boxerboy55]

Forgive my ignorance, but what's an MU?

. . . and keeps seeing "MU" in adverts. I couldn't tell him what it meant

I've seen plenty adverts with MY, but not MU.

MY means Model Year. Usually used when seller is trying to kid you a vehicle is 2010 MY when it was actually registered in 2009. Whether or not vehicle is actually the facelifted 2010 model or not is another story.

Just another piece of advertising trickery. Just like those very annoying A*toTrader ads that say 10 miles when it's really 100K miles so the ad filters catch it. Real tosserrrs

 

[snerkler]

No it doesn't.....

The coefficient of friction is a number which represents the friction between two surfaces. Between two equal surfaces, the coefficient of friction will be the same. The symbol usually used for the coefficient of friction is m

The maximum frictional force (when a body is sliding or is in limiting equilibrium) is equal to the coefficient of friction × the normal reaction force.

F = mR

Where m is the coefficient of friction and R is the normal reaction force.

This frictional force, F, will act parallel to the surfaces in contact and in a direction to oppose the motion that is taking/ trying to take place.

Example
A particle of mass 5 kg is at limiting equilibrium on a rough plane which is inclined at an angle of 30 degrees to the horizontal. Find the coefficient of friction between the particle and the plane.



Resolving up the plane:
F - 5gsin30 = 0

Resolving perpendicular to the plane:
R = 5gcos30

In limiting equilibrium, so F = mR
5gsin30 = m5gcos30

m = sin30/cos30 = 0.577 (3sf)

Wikipedia god

 

[Dahoum]

Dunno - its all Greek to me

 

[KevG]

MU = Mechanical update

TU = technical update