# SE2Velocity - Source proto: `rb/api/geometry.proto` Velocity representation in SE2 space. | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | linear | [Vec2](vec2.md#rb-api-vec2) | | (m/s) | | angular | [double](../scalar-value-types.md#scalar-value-types) | | (rad/s) |