A 2.30 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0360 m . the spring has force constant 900 n/m . the coefficient of kinetic friction between the floor and the block is 0.380. the block and spring are released from rest and the block slides along the floor. Part A: What is the speed of the block when it has moved a distance of 0.0200 m from its initial position?