Question

Three identical 7.50 kg masses are hung by three identical springs (Figure 1) . Each spring has a force constant of 7.70 kN/m and was 12.0 long before any masses were attached to it.

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

Express your answer with the appropriate units.

B)

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

Express your answer with the appropriate units.

C)

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

Express your answer with the appropriate units.

- MMM

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Answer #1

Please see image and try to understand thanks

Bottom Spring, mens Ox, at equilibrin kor = mg J AX = my gelo mlyn = 7.50870 K7.10m 7.78103 = 0.97CM (B) middle spring here

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