Work problem--blocks,pulley 1. The problem statement, all variables and given/known data Two blocks are connected by a very light string passing over a massless and frictionless pulley . The 20.0 N block moves 75.0 cm to the right and the 12.0 N block moves 75.0 cm downward. Find the total work done on 20.0N block if there is no friction between the table and the 20.0N block. 2. Relevant equations [tex]w=f\cdot s[/tex] [tex]f_k=\mu_k\cdot n[/tex] 3. The attempt at a solution w=12N(.75m)=9J--mastering physics says it's wrong.