what unit of mass is 1/1000 of a kilogram
Kilogram The gram, 1/1000 of a kilogram, was provisionally defined in 1795 as the mass of one cubic centimetre of water at the melting point of ice.[4] The final kilogram, manufactured as a prototype in 1799 and from which the International Prototype Kilogram (IPK) was derived in 1875, had a mass equal to the mass of 1 dm3 of water under atmospheric pressure and at the temperature of its maximum density, which is approximately 4 °C.
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.