What is the unit of kinematics viscosity in the metric system?

Kinematic viscosity is a measure of a fluid's internal resistance to flow under the influence of gravity, reflecting how quickly it spreads through space. In the metric system, kinematic viscosity has the units of area per time.

The standard unit for kinematic viscosity is square meters per second (m²/s) in the International System of Units (SI). This unit effectively conveys the distance that a fluid flows through a given area in a given time, which is essential for understanding fluid dynamics.

The other options provided do not correctly represent the unit of kinematic viscosity in the metric system. Poise is a unit for dynamic viscosity, square feet per second pertains more to imperial units and is related to the concept of flow but does not correspond to kinematic viscosity. Thus, square meters per second is the appropriate and correct representation of kinematic viscosity in the metric system.