please answer this fast

please answer this fast (1 second) 33. In the arrangement the spring constant K has value 2Nm-1, mass M=3kg and mass m is 1 kg. Mass M is in contact with a smooth surface. The CO-efficient of friction between two blocks is 0.1. What is the time period of S.H.M. executed by the system. ( 2NG sec.) e olice man sounds

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