Recent content by robtum

Point A would've been when the masses are at rest like in part (a) and B is when the platform is rotating and the string is at the given angle. I realize now that the mechanical energy most likely isn't conserved at those two points though. There must be some work put into the system to make it...

I'm having some trouble figuring this problem out. I've found the tension in (a) but I don't know where to start with (b). I've found that the distance between one of the masses and the rotational axis on the picture is R+0.52 m and that the masses rise to a height of h = 0.3 m. The moment of...