Could the rate of change of accelaration (or jerk in m/s3) affect the trajectory of a projectile? If so could it be to a noticeable extent? Given two systems where projectiles are fired by different propellants, say gasses with different rates of expansion. One reaches its maximum velocity at the end of the barrel whereas the other reaches its maximum velocity half way, or less for higher jerk, along the barrel. Would the rate of change of acceleration of the two projectiles have any effect on their overall trajectories even though both would have the same muzzle energy, as in attain the same velocity as they exit the end of the barrel?