The escape velocity from the earth is 11 kms^−1. The escape velocity from a planet having twice the radius and same mean density as that of earth is The escape velocity from the earth is 11 kms^−1. The escape velocity from a planet having twice the radius and same mean density as that of earth is September 15, 2020 Category: Cengage NEET by C.P Singh , Chapter 12 - Gravitation , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related