Is emission-less propulsion possible? I believe it is...

[mikelewis]

83. After firing the total momentum is 0...

Interesting. Why not get the very specific momentum of each unit... we're only concerned with the craft... we can worry about the projectile later... so start with the momentum imparted on the ship.... and then do the swingy thingy and then end with the momentum of the ship... and then make that 0. Or just say it with math like you just did...

Imagine a Julia Childs voice...

So you start with 0 = 0 and then you add 0 to both sides to get 0 dived by 1 because we at least know that and then add as many zeroes as you like.... ok is this math too hard for you?

{This might help you when you try to get that projectile to jerk that platform back to position 0 and stop it dead... I hear there's this thing called the "CoEfishient of the Reflection" or something... someone said it in this chat... they brought in Euler for some reason... sort of anachrantistic I thought... but it does make me hope that Euler, at the very lease, had a pencil.}