Abullet moving at 500 m/s has a kinetic energy of 2500 j and a potential energy of 0.5 j at a certain moment. what is the bullets mass and how high above the ground is it at the moment

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.