A block m of mass 2 kg is tied by a rope to another block m of 5 kg on which a horizontal force F of 10 N is applied. If the surface of the table and the block m have coefficients of static friction u = 0.3 and kinetic u = 0.2. and the pulley does not resist the rope slides on it, calculate a) the value of friction when F is present and the blocks are at rest. b) If you leave the force F applied, the blocks move, calculate the tension in the rope. m F