AI Generated Video

Relative Velocity: Who’s Really Moving?

R
Created December 28, 2025

About this video

Check out this video I made with revid.ai

https://www.revid.ai/view/relative-velocity-whos-really-moving-2S3cotA9L882qdXIlRBk

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Video Transcript

Full text from the video

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You’re standing inside a moving train. Life feels stable. You think you’re

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doing fine. Outside, a guy on the platform watches you fly past at 50 km/h

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and thinks, wow, this guy has zero control over his life.

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Who’s right? Both. Welcome to relative velocity — where physics gaslights

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everyone equally. Velocity is never absolute. It depends on who’s judging you.

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To you, the train is at rest. To the platform guy,

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you’re sprinting toward disappointment. Formula time, before emotions get involved:

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Relative velocity of A with respect to B = vₐ − vᵦ. Same direction? Subtract.

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