A block on a rough surface is given a push to the right. After the block is given the push, it is now sliding across the table (and the applied force from the push is no longer acting on it). The figure below shows the forces exerted on a block as it is sliding to the right on the horizontal surface: the gravitational force of 40 N, the 40 N normal force exerted by the surface, and a frictional force exerted to the left. The coefficient of kinetic friction (μk) between the block and the surface is 0.20.