I have three metal blocks evenly spaced in a 0.3m circle that attach to a rod in the center of the circle. The rod requires 15HP to keep rotating at 1200RPM. What would the mass of the three blocks spinning at 1200RPMs need to be in order to produce 15HP? My physics class hasn't got to anything that would help me figure this out, so I don't even know where to start. I need this for a something I'm trying to build not for school.
The Attempt at a Solution