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Relative velocities (general case)

Description

The relative velocity (v_A|B) is the velocity of an object or observer B in the rest frame of another object or observer A.

The general formula for the relative velocity (v_A|B) of an object or observer B in the rest frame of another object or observer A is given by the shown formula

Related formulas

Variables

vBArelative speed (m/s)
cspeed of sound (m/s)
vAspeed of object A (m/s)
vBspeed of object B (m/s)