Inherit Velocity (Velocity inheritance) is a technical term that is extremely important in rendering and optimizing game graphics (technical art). When particles are generated, it automatically takes over the movement speed of the source of the emission (parent object or moving character), reproducing natural physical behavior.
Real world analogy: Inertia of a ``ball thrown directly above'' returning to your hand on a running train
Velocity inheritance is the law of inertia that allows passengers who jump on a train traveling at 100 km/h to land in their original position without crashing into the wall behind them.'' If the speed is not inherited (Inherit=0), the speed becomes zero the moment it leaves the train (parent) (in the air), so it will be instantly left behind the train. By inheriting the speed correctly (Inherit=1), the particles will fly out with the same speed as their parent, allowing them to maintain a beautiful sense of unity even while moving.
Illustration: Inherit Velocity (velocity inheritance) in Japanese notation
Detailed mechanism and operating principle
Enable the particle system's "Inherit Velocity" module and set the Multiplier to something like "1.0" to make the particles inherit 100% of their parent's movement speed.