`v_(e)` and `v_(p)` denotes the escape velocity from the earth and another planet having twice the radius and the same mean density as the earth. Then

The escape Velocity from the earth is 11.2 Km//s . The escape Velocity from a planet having twice the radius and the same mean density as the earth, is :

The escape Velocity from the earth is 11.2 Km//s . The escape Velocity from a planet having twice the radius and the same mean density as the earth, is :

The escape velocity from the earth is about 11 km/s. The escape velocity from a planet having twice the radius and the twice mean density as the earth, is