A lumberjack (mass=98 kg) is standing at rest on one end of a floating that is also at rest. The lumberjack runs to the other end of the log (mass=230 kg), attaining a velocity of +3.6 m/s relative to the shore, and then hops onto an identical floating log that is initially at rest. Neglect any friction and resistance between the logs and the water.
(a) What is the velocity of the first log just before the lumberjack jumps off?
(b) Determine the velocity of the second log if the lumberjack comes to rest on it.