The escape speed from the surface of the Earth is 11.2 km s⁻¹. Another planet has the same mean density as the Earth but its radius is half that of the Earth. The escape speed from the surface of this planet is:
The escape speed from the surface of the Earth is 11.2 km s⁻¹. Another planet has the same mean density as the Earth but its radius is half that of the Earth. The escape speed from the surface of this planet is: