1. The problem statement, all variables and given/known data I am trying to model a hollow cylinder of known radius r, length l and density rho. The cylinder is fixed on a horizontal axle along its longest axis (l) and will have a force F applied tangentially to its surface and perpendicular to its axis, with negligible frictional forces acting between it and the axle. What equations could I use to model the speed of its rotation? 2. Relevant equations Mass = pi*r2*l*rho Some equation involving moments, potentially? I am a mathematician and have little work on angular velocity, so I apologise for the trouble. 3. The attempt at a solution I have attempted to find a relevant equation but all searches gave either inapplicable scenarios or equations quoted ad verbatim with no clarification to notation.