A Spacecraft (Mass = M) Orbits a Planet (Mass =

Multiple Choice

A spacecraft (mass = m) orbits a planet (mass = M) in a circular orbit (radius = R) . What is the minimum energy required to send this spacecraft to a distant point in space where the gravitational force on the spacecraft by the planet is negligible?

A) GmM/(4R)
B) GmM/R
C) GmM/(2R)
D) GmM/(3R)
E) 2GmM/(5R)