An object moves with velocity u in Frame O. Frame A moves to the Right at speed v relative to O, while Frame B moves to the left at speed v relative to Frame O. If we apply the Lorentz transformation for velocities to find the velocity of the object in Frame A and Frame B, we will find it has the same speed but opposite directions in A and B . it has a different velocity in A than in B. it has twice the velocity in A that it has in B it has the same velocity in A and in B.