Relative Velocity: Who’s Really Moving?
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Video Transcript
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You’re standing inside a moving train. Life feels stable. You think you’re
doing fine. Outside, a guy on the platform watches you fly past at 50 km/h
and thinks, wow, this guy has zero control over his life.
Who’s right? Both. Welcome to relative velocity — where physics gaslights
everyone equally. Velocity is never absolute. It depends on who’s judging you.
To you, the train is at rest. To the platform guy,
you’re sprinting toward disappointment. Formula time, before emotions get involved:
Relative velocity of A with respect to B = vₐ − vᵦ. Same direction? Subtract.
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