Please i need to solve this question An employee is required to unload 30 cm cardboard cubes from a pallet (15 cm thickness) and place them on a conveyor that is 80 cm high. The cartoons are unloaded at 6 cartons min-1 . Each pallet has three layers of cartons, with each layer containing 16 cartons. The operation requires the worker to twist approximately 900 while turning to unload the cartoon on to the conveyor. A maximum of four pallets are unloaded during the first hour of each shift (the activity takes place only once per shift). Find the recommended weight limit for the activity.