  The relativistic motion of an arbitrary point of an accelerated rigid rod is
discussed for the case when velocity and acceleration are directed along the
rod's length. The discussion includes the case of a time-dependent force
applied to a single point, as well as a time-independent force arbitrary
distributed along the rod.
  The time dependence of the rod's relativistic length depends on the
application point of the force, but after the termination of acceleration the
final velocity and length do not depend on it. An observer on a uniformly
accelerated rod feels an inertial force which decreases in the direction of
acceleration. The influence of non-rigidity of realistic rods on our results is
qualitatively discussed.
