1.

K1=2 N/m K2=4 N/m m=2 kg Find time period of oscillation

Answer»

Here the SPRINGS are in series combination so,equivalent SPRING is constant,K= k i +k 2 k 1 k 2 20001500×500 =375N/mSo the work DONE in slowly pulling down m 2 by 8 cm is,W= 21 K×x 2 = 21 ×375×64×10 −4 =1.2J



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