| Status: |
STD 2005/06/07 |
| Code: |
146 |
| Symbol: |
m/s |
| EQ label: |
SPEED |
| |
| Quantities associated with this Unit |
|---|
|
| Quantity: |
velocity
|
| Concept definition: |
dr/dt, where r is position vector [ISO 80000-3:2006, item 3-1.11] and t is time [ISO 80000-3:2006, item 3-7]. |
| |
| Reference type: |
PR |
| Reference: |
[ISO 80000-3:2006, item 3-8.a and item 3-8.1] |
| Supplemental references: |
|
|
| Quantity: |
group velocity (group speed)
|
| Concept definition: |
dω/dk, where ω is angular frequency [ISO 80000-3:2006, item 3-16] and k is angular wavenumber [ISO 80000-3:2006, item 3-19]. |
| |
| Reference type: |
PR |
| Reference: |
[ISO 80000-3:2006, item 3-20.a and item 3-20.2] |
| Supplemental references: |
|
|
| Quantity: |
phase velocity (phase speed)
|
| Concept definition: |
ω/k, where ω is angular frequency [ISO 80000-3:2006, item 3-16] and k is angular wavenumber [ISO 80000-3:2006, item 3-19]. |
| |
| Reference type: |
PR |
| Reference: |
[ISO 80000-3:2006, item 3-20.a and item 3-20.1] |
| Supplemental references: |
|
|
| Quantity: |
sound particle velocity
|
| Concept definition: |
δδ/δt, where δ is sound particle displacement [ISO 80000-8:2007, item 8.10] and t is time. |
| |
| Reference type: |
PR |
| Reference: |
[ISO 80000-8:2007, item 8-11.a] |
| Supplemental references: |
|
|
