9 In the system shown in Figure , suppose the block has a mass of 2.7 kg, the spring has a force constant of 480 N/m, and the coefficient of kinetic friction between the block and the floor 18 0.16. (a) Find the work done on the block by the spring and by Friction as the block is moved from point A to point B along Path 2. (b) Find the work done on the block by the spring and by Fiction if the block is moved directly from point A to point B. FRAGILE A B -2.0 cm 2.0 cm 4.0 cm 2 A FIGURE 3