Two objects are dropped from the same height at the same time, one heavier than the other. Ignoring air resistance, which hits the ground first?

Ignoring air resistance, all objects fall with the same acceleration due to gravity (about 9.8 m/s²) regardless of their mass, so two objects dropped from the same height at the same time hit the ground at the same moment. This famous principle means a heavy ball and a light ball fall together in a vacuum. In real life, air resistance can slow lighter or less dense objects (like a feather), but the question specifies ignoring air resistance. Understanding that gravity accelerates all masses equally is a classic force-and-motion concept on the Mechanical Comprehension subtest.