A 4.30 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 43.0 N. The figure gives the block's speed v versus time t as the block moves along an x axis on the floor. The scale of the figure's vertical axis is set by vs = 5.30 m/s. What is the coefficient of kinetic friction between the block and the floor?

so is the acceleration 5.3m/s^2? And where do i go from there?