4-12 An object of mass 2 kg hangs from a spring of negligible mass.The spring isextended by 2.5 cm when the object is attached. The top end of the spring is oscillatedup and down in SHM with an amplitude of 1 mm. The Q of the system is 15.(a) What is wo for this system?(b) What is the amplitude of forced oscillation at W=W0?(c) What is the mean power input to maintain the forced oscillation at a frequency 2%greater than W0? [Use of the approximate formula, Eq. (4-26), is justified.10080203638404244a (sec")4-13 The graph shows the power resonance curve of a certain mechanical system whenInput power, watts

We know from Hooks Law, F=kxmg=kxk=mgx Now substituting x=2.5×10-2 m and g=10 m.s-2 we get, k=2(10…

Answered: 4-12 An object of mass 2 kg hangs from…

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