A 3.00 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0350 m . the spring has force constant 820 N/m. the coefficient of kinetic friction between the floor and the block is μk = 0.400. the block and spring are released from rest and the block slides along the floor.

What is the speed of the block when it has moved a distance of 0.0200 m from its initial position? (At this point the spring is compressed 0.0100 m.)