1. The problem statement, all variables and given/known data A merry-go-round rotates at the rate of 0.12 rev/s with an 86 kg man standing at a point 1.4 m from the axis of rotation. What is the new angular speed when the man walks to a point 0 m from the center? Consider the merry-go-round is a solid 45 kg cylinder of radius of 1.4 m. Answer in units of rad/s theres a follow up question: What is the change in kinetic energy due to this movement? Answer in units of J but don't really worry about that right now. 2. Relevant equations v = rw ? 3. The attempt at a solution Is it just me being dumb or is there a lot of excess information/ kind of a trick question? The angular speed of the merry go round would still be 0.12 rev/sec (need to convert to rad). just the linear velocity changes with the radius.... I think? maybe some of that other information has to do with the change in energy question? I just thought about the follow up question for a minute, maybe I know more than I think, but I'm not confident/have been getting these wrong. >would you use V= rw to get the linear velocity and then plug that into 1/2mv^2 , and when the radius is 0 the energy goes to 0 since v=rw?