SI unit of momentum is kilogram metre per second (kg·m/s)

The SI unit of momentum is the kilogram meter per second (kg m/s), representing the product of an object’s mass and velocity. The momentum of an object is given by the product of its mass and velocity. The SI unit for mass is the kilogram (kg), and the SI unit for velocity is meters per second (m/s). Therefore, the unit of momentum is the kilogram meter per second, often denoted as kg·m/s.

The formula for momentum (p) is:

p = m ⋅ v

Where:

• p is the momentum,
• m is the mass of the object, and
• v is its velocity.

In the International System of Units (SI), the kilogram meter per second is the standard unit for momentum to ensure consistency and coherence in scientific measurements. This unit reflects the physical interpretation of momentum as the product of mass and velocity, and it allows for meaningful comparisons and calculations in the study of motion and collisions in physics. It quantifies an object’s motion.