A2.60kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0310m . the spring has force constant 810n/m . the coefficient of kinetic friction between the floor and the block is 0.39 . the block and spring are released from rest and the block slides along the floor.

a-what is the speed of the block when it has moved a distance of 0.0120m from its initial position? (at this point the spring is compressed 0.0190m .)

express your answer with the appropriate units.