In the fig shown, a block of mass M is attached to the spring and another block of mass 2M has been placed over it. The system is in equilibrium. The block are pushed down so that the spring compresses further by `(9Mg)/K`. System is released

(a) At what height above the position of release, the block of mass 2M will lose contact with the other block? (b) What is maximum height attained by 2M above the point of release?

Answer

(a) `(12 Mg)/k`
(b)`(24 Mg)/k`