Answer :

The speed of the block,


The block of mass “m” is attached with 2 spring constants and and the block is released on the right.

Formula Used

Using the conversation of energy, we equate the energies of spring compression and potential energy of the mass of the block, the formula of the energy stored in spring compression is

And the energy stored in the block is formulated as


The value of spring constant is denoted as “k”, the compression distance is “x”, the mass of the block is given as “m”, v is the velocity of the block.


The conservation of the energy between spring energy and potential energy is given as

Therefore, the speed of the block,

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