(Solved): please show steps for both A and B Boxes A and B are connected to each end of a light vertical ...

please show steps for both A and B

Boxes $$A$$ and $$B$$ are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force $$90.0\mathrm{N}$$ is applied to box $$A$$. Starting from rest, box $$B$$ descends What is the mass of box $$B$$ ? $$11.5\mathrm{m}$$ in $$5.00\mathrm{s}$$. The tension in the rope connecting the two Express your answer with the approprlate units. boxes is $$38.0\mathrm{N}$$ (Figure 1). Part B Figure What is the mass of box $$A$$ ? Express your answer witi prlate units.