10-kg block is connected to a 40kg block.The horizontal surface on which the blocks slide is not frictionless and assume both blocks are made out of same material. a force of 50 N pulls the blocks to the right and produces an acceleration of 1/2 m/s^2 towards right . A) what is th coefficient of kinetic friction, between the block material and the surface ? B) what is the magnitude of the tension T in the rope that connects the two blocks when they are accelerating ?