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018 (part 1 of 3) 10.0 points A 3 kg object oscillates with an initial ampli- tude of 469 cm on a spring of force constant 76

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020

Natural angular frequency of spring mass system is

\omega_o=\sqrt{\frac {k}{m}}

760.6 N wo=V 3 kg

We = 15.923 rad) s

It is given that energy decrease per period is 1%

() = 1% = 0.01 E cycle

The Q-factor is

20 27 = 200元 (g), 0.01 -

Using

O Wom

We get

b= Wom 0

(15.923 rad/s) x (3 kg) 2007

b = 0.076 kg/s

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