si unit of pressure is pascal which is equal to
Pascal (unit) The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is defined as one newton per square metre.[1] It is named after the French polymath Blaise Pascal.
Momentum In SI units, it is measured in kilogram meters per second (kg · m/s). Newton's second law of motion states that a body's rate of change in momentum is equal to the net force acting on it.