Linearvelocity on a model

Hi! Im making a meteor falling and that meteor is a model. I need to have a linearvelocity on all of the parts, but you cant on a model. Thanks!

Have you tried setting a primarypart? And then on certain specific conditions you should have a check if you’re doing it on a model you should be able to make it so that all the other parts are welded and unachored and the LinearVelocity should be right on the PrimaryPart of the model.