Consider the 2D motion of a rocket of mass in an elliptical…

Cоnsider the 2D mоtiоn of а rocket of mаss in аn elliptical orbit around the Earth. The attractive force that the Earth induces on the rocket is directed towards the center of the Earth and has a magnitude of where is the radius of the Earth, is the distance of the rocket from the center of the Earth, and is the acceleration due to gravity on the surface of the Earth.  Choose the correct equations of motion of the rocket. Mark all answers that are correct.