sir in this q we know after attaining maximum velocity the ball will continue the circular path ,so here the centripetal force will be provided by the spring force only(provided smooth surface)..so if we write an equation of centripetal force we get the value of V²(max)..but with this relation the Ans that I arrived doesn't match with urs..sir pls rectify my mistake ...pardon
4 years ago
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N K D