The unsteady state flow of a visco elastic fluid of second order type over an inclined porous plate is examined, taking into account of a uniform tangential force in terms of Heaviside's unit step function which acts on the free surface for a finite interval of time with different angles of inclination of the plate and gravitational pull into consideration. The decrease in the fluid velocity during the initial length of the plate is in accordance with the natural law of absorption. When the void space is fully saturated, due to the presence of the gravitational force and partly due to the inclination of the plate the fluid velocity increases at a rapid rate only in the later part of the plate.