Say, I have 10 Km (1m dia.) exposed pipeline under construction phase. 9 Km of the pipe line was already done. Its so happen that at the next pipe length installation, the plane operator mishandled the pipe and it collided at the end where connection should be made, big time that the magnitude of the force would enough to make impact on mountings, support braces of the pipe. Which would you think arrive first at the other end? Is it the mechanical impact or the sound of impact?