A lumberjack (mass= 86.4kg) is standing at rest on one end of a floating log mass (201kg) that is also at rest. the lumberjack runs to the other end of long, attaining a velocity of 2.66m/s relative to the shore and then hop onto a identical floating log that is initally at rest. neglect any friction and resistance between the long and teh wayer.
(a) What is the velocity of the first log (again relative to the shore) just before the lumberjack jumps off?
(b) Determine the velocity of the seound.