The specific type of this
The specific type of this quantity measures the efficiency of a propulsion system. When a single force is acting on a particle, it can be calculated by determining the difference between the final velocity and the initial (*) velocity and multiplying that amount by the mass of the moving object. Defined as the product of the force and the time in which that force acts on an object, FTP, identify this physical quantity symbolized by the letter I, that also identifies the type of sub-Warp propulsion engine used on Star Trek.
The specific type of this quantity measures the efficiency of a propulsion system.
{Impulse}