This horizontal food mixer contains a 2 "diameter shaft, on which is mounted a 3/16" thick A36 steel hearth slat spiral. In the indicated area, this hearth breaks, and the blacksmith wants to weld the strip by applying 100 g of welding. But additionally he says that to make it look better he will put a hearth that weighs 300 gr and for which it takes up 150 gr more of solder. The distance from the break zone to the center of rotation is 40 cm. The mixer in function mixes 150kg of food and works at 50 RPM. From your perspective as an engineer, what is the solution and once taken, how would you do the balancing and what would be the mass to use to start the mixer again?