For an observer inside a freely falling elevator cab, which consequence regarding projectile motion results from Einstein's equivalence principle?

💡 Explanation

Projectile motion describes parabolic trajectories via inertial motion locally indistinguishable from zero gravity, because the equivalence principle implies gravitational effects are locally identical to being in an accelerating frame of reference; therefore projectiles trace parabolas rather than following geodesics observed in a gravitational field.

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