Momentum is mass x velocity, therefore the units are kilogram x meter / second.
second
Pascal. The pascal is equal to one newton per meter squared, or one kilogram per meter per second squared.
meter/second or ms-1
PASCAL
How to Measure Customary Units of Capacity
How to Estimate and Measure Capacity in Metric Units
How to Measure Length in Metric Units
How to Estimate and Measure Mass in Metric Units