What is ‘Object Velocity’ doing if ‘Normal Velocity’ is handling the speed and direction of emission?

[bishop3101]

[Grant Wilk]

The two velocities add on top of each other. 

You can imagine the normal velocity as the base-velocity. The particles will ALWAYS be emitted at -1 m/s relative to the normal of our emitter.

The object velocity is a velocity that’s added on top of our base-velocity. As the rocket (and inherently, the emitter) gains velocity, the particles will be emitted at -1 * n m/s, where n is our objects velocity.

So our sum velocity is: 

velocity = normal_velocity +  object_velocity

(-(1 + n ) m/s) = (-1 m/s) + (-1 * n m/s), where n is the velocity of our rocket

[Jahim Clarence]

I appreciate this explanation. Even though it wasn’t something I was stuck on,it was very informative.

[Author]

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