A man can row a boat at a speed of 2metres per second . The man set out to row the boat in a river from A to B. The water in the river flows 0.8metres per second in the opposite direction.Determine the velocity of the boat through the water.

Answer 1

You already said the speed of the boat through the water was 2 m/s
The speed over the land is 2-.8 = 1.2 m/s