If an object has a position xA(t) in a given inertial frame of reference, x, that is moving with a velocity v′B compared to a different inertial frame of reference, x′, then the...If an object has a position xA(t) in a given inertial frame of reference, x, that is moving with a velocity v′B compared to a different inertial frame of reference, x′, then the position of the object in the x′ frame of reference is given by x′(t)=v′B+xA(t).