what is the correct equation to use to find the velocity of the center of mass of a cylinder after it rolls down a hill
Stinking thinking, looking for THE equation.
Consider energy.
Change in PEnergy= mgh= mg*distance*sinTheta
change in KEnergy: 1/2 m v^2 + 1/2 I w^2
look up the moment of inertia I for a cylinder. Then, w=v/r.
Set total KE= PE change, and solve for velocity.