If the differential equation given by P \[ \frac{d^{2} y}{d^{2}}+2 ...

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If the differential equation given by
P
\[
\frac{d^{2} y}{d^{2}}+2 k \frac{d y}{d t}+\omega^{2} y=\frac{F_{0}}{m} \sin \pi t
\]
W
describes the oscillatory motion of a body in a
dissipative medium under the influence of a
periodic force, then this situation is :-
(1) free vibration
(2) damped vibration
(3) forced vibration
(4) resonance
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