Attachment moving with object

Hello. Im using a linearvelocity on an object. I have an attachment parented to the object, and the linearvelocity is relative to the attachment. The problem is that when the part rotates, the attachment does too, therefore changing the direction of where the obejct goes. I’ve also tried parenting the attachment to something else, but then it didnt work. Ive tried relative to world but then it didnt move at all. Any help is appreciated.

I see that setting RelativeTo world didn’t work. You could meaby provide an image of the part you have?