question_answer

Does a rocket really need the escape velocity of \[\mathbf{11}.\mathbf{2}\text{ }\mathbf{km}{{\mathbf{s}}^{-\mathbf{1}}}\] initially to escape from the earth?

Answer:

                No, rocket can have any velocity at the start. The rocket can continue to increase the velocity due to thrust provided by the escaping gases that will carry it to a desired position.