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Two blocks of masses 3kg and 6kg respect...

Two blocks of masses `3kg` and `6kg` respectivley are placed on a smooth horizontal surface. They are connected by a light spring of force constant `k=200N//m`. Initially the spring is unstretched. The indicated velocities are imparted to the blocks. Find the maximum extension of the spring.

A

30 cm

B

25 cm

C

20 cm

D

15 cm

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The correct Answer is:
A
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