1. The problem statement, all variables and given/known data Two blocs with the same mass have the same rope which links them. The friction coefficients are the same whatever the surface. The blocs are initialy stationary and we let them move. What is the module of the acceleration of the blocs if static coefficient of friction =0,25 Cinetic coefficient of friction = 0,2 2. Relevant equations Newton's second law. Sum forces = ma and fs or c = u* n (friction formula) 3. The attempt at a solution I don't know what to do to be honest. I know what forces we have, I know how to write Newton's formula for each object and I get a total of 4 formulas for NEwton's second law. But after that, where do I go ?