Four spring connect with mass as shown in figure. Find frequency of S.

1.	Four spring connect with mass as shown in figure. Find frequency of S.H.M.
Answer» `(1)/(2pi) sqrt((K)/(4M))` `(1)/(2pi) sqrt((4k)/(M))` `(1)/(2pi) sqrt((k)/(7M))` `(1)/(2pi) sqrt((7K)/(M))` Solution : These two CONNECTED in series. So `K.=(k_(1)k_(2))/(k_(1)+k_(2))=k` Now all are in parallel so `k_(eq)=4k` so FREQ. `=(1)/(2pi) sqrt((4k)/(M))`

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