Q3.B: In the figure shown below there are two attached blocks to each other by a weightless string which is wrapped around a frictionless pulley. When the bottom 6.00 kg block is pulled to the left by the constant force P, the top 4.00 kg block slides across it to the right. Find the magnitude of the force necessary to move the blocks at constant speed. Assume that the coefficient of kinetic friction between all surfaces is 0.600. ya 4 kg 6 kg