A rocket moving in free space has a speed of 3 x 103 m/s relative to the Earth. Its engines are turned on, and fuel is ejected in a direction opposite the rocket’s motion at a 5 x 103 m/s

relative to therocket. What is the speed of the rocket relative to the Earth once the rocket’s

mass is reduced to half its mass before ignition?

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.