10.Let S be the surface of a cone z-1-vA+ã¢above the ry-plane oriented upwards Fiz, y, z) = (y, zz, 1) be a vector feld. 10.1 Find curl(F). (2 marks) 10.2 Find the unit normal vector in to the surface S (2 marks) 10.3 Using the Stokes' theorem, evaluate the surface integral curF) dS (6 marks