There are many people who travel with cats, both single and multiple and some with dogs and cats. It seems from reading various posts that they usually adapt. I would start by going into your rv with the cat and just sit around for awhile. Get the cat used to the rv. Take some toys, it's bed or other favorite things and give it time to explore. Word of warning --- ALWAYS confine the cat to a different room, or hold it while slides are being put in and out. Pets can become lodged and crushed in slide mechanisms, especially if they are the kind who like to hide.