Problem: Three identical 8.50-kg masses are hung by three identical springs . Each spring has a force constant of 7.60 kN/m and was 14.0 cm long before any masses were attached to it.How long is the bottom spring when hanging as shown? (Hint: isolate only the bottom mass.)How long is the middle spring when hanging as shown? (Hint: treat the bottom two masses as a system.)How long is the top spring when hanging as shown? (Hint: treat all three masses as a system.)Draw a free-body diagram for the top mass.Draw a free-body diagram for the middle mass.Draw a free-body diagram for the bottom mass.

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Three identical 8.50-kg masses are hung by three identical springs . Each spring has a force constant of 7.60 kN/m and was 14.0 cm long before any masses were attached to it.

How long is the bottom spring when hanging as shown? (Hint: isolate only the bottom mass.)

How long is the middle spring when hanging as shown? (Hint: treat the bottom two masses as a system.)

How long is the top spring when hanging as shown? (Hint: treat all three masses as a system.)

Draw a free-body diagram for the top mass.

Draw a free-body diagram for the middle mass.

Draw a free-body diagram for the bottom mass.

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Our tutors have indicated that to solve this problem you will need to apply the Work By Variable Forces (Springs) concept. You can view video lessons to learn Work By Variable Forces (Springs). Or if you need more Work By Variable Forces (Springs) practice, you can also practice Work By Variable Forces (Springs) practice problems.