21. Although a rocket will bump the X-43A to its initial velocity , it will rely on an air-breathing engine while flying independently. 22. The initial velocity of the shot is around 860 m / s depending on the shell and amount of propellant used. 23. However, the energy constant h can also be calculated for nonzero initial velocity , and the equation still holds in all cases. 24. A DEM-simulation is started by first generating a model, which results in spatially orienting all particles and assigning an initial velocity . 25. The initial velocity of x is 18.04 m / s, and the initial velocity of y is 31.24 m / s. 26. The initial velocity of x is 18.04 m / s, and the initial velocity of y is 31.24 m / s. 27. A distinctive feature of sub-swarms is that their initial positions and initial velocities are not randomly selected as in normal swarms. 28. As a simplifying assumption one assumes that the external forces bring the system back to its initial velocity after some finite time. 29. Since 1941, the USGA has measured initial velocity using a wheel that strikes the ball at 143 mph ( 230 kmph ). 30. Particles with 0.1 may spiral inwards or outwards depending on their size and initial velocity vector; they tend to stay in eccentric orbits.
