- #1
CF.Gauss
- 8
- 1
We all understand what metres PER second (m/s) physically means... but,
What I was wondering was what does a 'metre-second' actually mean? Or does it have a physical meaning at all!
As an example:
If we take the units for Dynamic viscosity we have:
Kilogram per metre second ( Kg / m.s )
On a side note, in relation to my above example:
The SI physical unit of dynamic viscosity is the pascal-second (Pa·s), which is identical to
Kg. m-1.s-1 = Kg / (m s)
Another example, of a similar type, would be the standard unit of momentum, which is:
Kilogram-metre per second (kg · m/s or kg · m · s-1 ) which in SI units is equal to Newton-second (N · s)
In this example we have both a Kilogram-metre and, in SI, a Newton-second!
I can easily conceptualise the idea of, say, 1 Metre every 1 Second (m/s) but I am finding it hard to conceptualise this concept!
How exactly could one have, in the physical world, a metre-second (m · s), kilogram-metre (Kg · m) or Newton-second (N · s)?
What I was wondering was what does a 'metre-second' actually mean? Or does it have a physical meaning at all!
As an example:
If we take the units for Dynamic viscosity we have:
Kilogram per metre second ( Kg / m.s )
On a side note, in relation to my above example:
The SI physical unit of dynamic viscosity is the pascal-second (Pa·s), which is identical to
Kg. m-1.s-1 = Kg / (m s)
Another example, of a similar type, would be the standard unit of momentum, which is:
Kilogram-metre per second (kg · m/s or kg · m · s-1 ) which in SI units is equal to Newton-second (N · s)
In this example we have both a Kilogram-metre and, in SI, a Newton-second!
I can easily conceptualise the idea of, say, 1 Metre every 1 Second (m/s) but I am finding it hard to conceptualise this concept!
How exactly could one have, in the physical world, a metre-second (m · s), kilogram-metre (Kg · m) or Newton-second (N · s)?