The intensity of a tornado is measured by Fujita Tornado Intensity Scale (Fscale). An intense tornado with an F-scale reading of 4 has a maximum wind velocity of 350 km/hr. The tornado is modeled as a combination of a free and forced vortex, and the radius of the forced vortex is 50 m. The atmospheric pressure is 100 kPa. Derive and plot the variation of pressure with radius from the center. Assume no elevation change.