2.20 An SDF system consisting of a weight, spring, and friction device is shown in Fig. P2.20. This device slips at a force equal to 10% of the weight, and the natural vibration period of the system is 0.25 sec. If this system is given an initial displacement of 5 cm and released, what will be the displacement amplitude after six cycles? In how many cycles will the system come to rest? F = 0.1 mg mg Figure P2.20

Elements Of Electromagnetics
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2.20
An SDF system consisting of a weight, spring, and friction device is shown in Fig. P2.20. This device
slips at a force equal to 10% of the weight, and the natural vibration period of the system is 0.25 sec.
If this system is given an initial displacement of 5 cm and released, what will be the displacement
amplitude after six cycles? In how many cycles will the system come to rest?
F = 0.1 mg
mg
ellle
Figure P2.20
Transcribed Image Text:2.20 An SDF system consisting of a weight, spring, and friction device is shown in Fig. P2.20. This device slips at a force equal to 10% of the weight, and the natural vibration period of the system is 0.25 sec. If this system is given an initial displacement of 5 cm and released, what will be the displacement amplitude after six cycles? In how many cycles will the system come to rest? F = 0.1 mg mg ellle Figure P2.20
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