Heat Transfer by conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass. if this is not what are you looking for I am sorry :c
Suppose rowing speed is V km/s.
So, upstream speed = V-2
Downstream speed = V+ 2
Total time is taken 3 h 20 min to cover up and down journey of 5 km.
So, total time = upstream time + downstream time


and
, we take only positive velocity.
Thus, the the rowing speed of the crew in still water is 1 km/s.
Continue on the momentum it has. The probe will continue in the same direction it is moving because there are no forces to act against it. I think this is the answer you are looking for...?
The man because the train is moving 72 mph not the man