find the bottom L1, middle L3 and top L3 spring how long are they?

Question

Three identical 6.60 kg masses are hung by three identical springs, as shown in the figure. Each spring has a force constant of 6.40kN/m and was 16.0cm long before any masses were attached to it. How long is each spring when hanging as shown? (Hint: First isolate only the bottom mass. Then treat the bottom two masses as a system. Finally, treat all three masses as a system.)

Answer 1

Figure?? I don't see no steenking figure ☺


Doug