# SI Units: Is the combination of SI units still an SI unit?

## Homework Statement

Is N/m^2 a si unit
I know Newton is and meters
but togeather are there
or is m^2

## The Attempt at a Solution

N/m^2
m^2

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Find out if N/m2 has been assigned another name in the SI.

• berkeman and CWatters
CWatters
Homework Helper
Gold Member
In general you can't assume a combination of SI units automatically makes another SI unit.

Newton is a force.
m2 is an area.
So a N/m2 is a unit of what?

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• scottdave
Newton per meter square

DrClaude
Mentor
In general you can't assume a combination of SI units automatically makes another SI unit.
Why not? Any combination of SI units is another SI unit. Whether it is the unit of something physical or has its own name is another question, but it is still in the realm of the system.

CWatters
Homework Helper
Gold Member
So what is the SI unit (singular) of torque? You can express torque in SI units (plural) but there isn't an SI unit of torque. That what I meant.

CWatters