Recent content by DavidLee

From what I know, it is possible for an object that is not rolling without slipping to achieve rolling without slipping even though it have an initial angular velocity and velocity as long as they fulfill the equation v=rω

Is it true that when an object is rolling, it may or may not be pure rolling?

Question: Refer to https://www.physicsforums.com/threads/rolling-motion-of-plank-and-cylinders.93329/ I am able to understand all the points until the point v_roller+rω=v_plank. I have a tough time understanding this part. My attempt at the question: I think that the static friction at the top...