A rocket is launched normal to the surface of the Earth, away from the Sun, along the line joining the Sun and the Earth. The Sun is 3 × 10 5 times heavier than the Earth and is at a distance 2.5 × 10 4 times larger than the radius of the Earth. The escape velocity from Earth's gravitational field is v e = 11.2km s –1 . The minimum initial velocity (v s ) required for the rocket to be able to leave the Sun-Earth system is closest to: (Ignore the rotation and revolution of the Earth and the presence of any other planet)