When several objects with different masses are dropped by an astronaut on the (airless) Moon where there is no air friction, their resultant motions:

Question

Quizplus · Accepted Answer

According to the principle of inertia, all objects, regardless of their mass, will fall at the same rate in the absence of air friction. This was famously demonstrated by Galileo when he dropped two objects of different masses from the Leaning Tower of Pisa and observed that they hit the ground at the same time. Therefore, the resultant motions of the objects dropped by the astronaut on the Moon will be independent of their masses.

When Several Objects with Different Masses Are Dropped by an Astronaut