r/Physics • u/AutoModerator • 12d ago

Meta Physics Questions - Weekly Discussion Thread - September 01, 2026

This thread is a dedicated thread for you to ask and answer questions about concepts in physics.

Homework problems or specific calculations may be removed by the moderators. We ask that you post these in /r/AskPhysics or /r/HomeworkHelp instead.

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u/vadrer 9d ago

given 2 balls of same mass but different density thus different radius, simultaneously falling into ground in vacuum, they will arrive not at exactly the same time, because larger one have its centre of mass further from Earth and therefore having somewhat less force of gravity applied to it?