Two blocks are connected by a very light string passing over a mass less and frictionless pulley (Figure 6.30). Traveling at constant speed, the 20.0-N block moves 75.0 cm to the right and the 12.0-N block moves 75.0 cm downward. During this process, how much work is done
(a) On the 12.0-N block by (i) gravity and (ii) the tension in the string?
(b) On the 20.O-Nblock by (i) gravity, (ii) the tension in the string, (iii) friction, and (iv) the normal force?
(c) Find the total work done on each block.

20 0 12.0