Explain 11 in simple steps.

1 1. There are two bars, A and B, where Bar A is moving at a Bar A relativistic speed, v. When Bar B observes the two bars, they measure as the same Bar B length So LA=LB. When Bar A observes the two bars, are they the same length? If they are the same length, explain why. If they are not the same length, which is longer? Explain