Possible to add query string to specific category's RSS permalinks?

I’m trying to add some tracking code to permalinks in a specific category’s RSS feed. For example, for all articles in the ‘company’ category’s RSS feed, I’d like to append ?track=true to the permalink.

I don’t want this to appear in the address bar of the browser — just in the generated RSS feed. Is this possible using some sort of hook or filter?

Thanks in advance for any help.