Solve correctly with step by step calculation

Data Table 1 Item Mass (kg) Normal Force (N) Fs (N) Static Friction F* (N) Kinetic Friction Plastic (0.2 kg 0.15 1.04 2.5 -0.4 added) Plastic (0.4 kg 0.2 0.97 2.5 1.6 added) Plastic (0.6 kg 0.25 1.04 4.8 2.7 added ) Item Mass (kg) Normal Force (N) Fs (N) Static Friction Fx (N) Kinetic Friction Cork (0.2 kg added) 0.21 1.045 0.3 -0.2 Cork (0.4 kg added 0.4 1.045 1.0 0.1 Cork (0.6 kg added) 0.55 1.04 23.7 0.1 Calculations Use your data for the mass of the friction tray to calculate the normal force for each run (Normal Force = FN = mg where g = 9.8 N/kg)