Dependinguponthevalueofω0andv0,thecylindermayeventuallymoveforwardbackwardorstop.Leteventuallythevelocityofthecylinderbevanditsangularveocitybeωthenbyconservationofangularmomentummv0r−12mr2ω0=mvr+12mr2ωandeventuallythecylinderisrollingsov=ωr⇒mv0r−12mr2ω0=32mvr,vcanbe+ve,−veorzerofromthisequation.