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three identical 7.50kg masses are hung by three identical springs

Three identical 7.50 kg masses are hung by the identical springs (Figure 1) Each spring has a force constant of 7.90 kN/m and
How long is the top spring when hanging as shown? (Hint: treat all three masses as a system.) Express your answer with the ap
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Answer #1

Soj, m= 7.50kg , = 7.90KN/m dU = 7900 N/m l = 15 is not given then we to 1.9t e 15 cm {unit of I is not given then we take aParta for the top spring K21 fo= 3 my ka=3m x= 3 mg 2 = 27.93 x 10-3m na 0.02793m relta -10:15+0.02 793) m Il = 0.1779 m or (

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