1. The problem statement, all variables and given/known data A rocket is accelerated to speed v=2√gR (where R is the radius of earth 6370 km) near Earth's surface surface and it then coasts upward. a) show that it wil escape from Earth. b) Show that very far from Earth its speed will be v=2√gR. 2. Relevant equations Gravitational potential energy Escape Speed Conservation of Mechanical Energy 3. The attempt at a solution I got part A, but I do not know how to set up part b correctly.