A massless spring of force constant 1000 N m/s is compressed a distance of 20 cm between discs of 8 kg and 2 kg, spring is not attached to discs. The system is given an initial velocity 3 m/s perpendicular to length of spring as shown in the figure. What is ground frame velocity of 2 kg block (in m/s) when spring regains its natural length.
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