draw a picture, as always. You will have a right triangle representing the speeds involved.
The hypotenuse will be the boat's actual speed (8) and direction (θ).
The vertical leg will be 2.5
So, the angle θ, measured upriver from the east-to-west direction, will be
sin θ = 2.5/8
θ = 18.2°
So, the heading is W18.2°N or 341.8°
A boat pilot wishes to go in a straight line across a river from the east dock to the west dock in a ferryboat that has a still water speed 8.0 knots. If the river has a Southward current of 2.5 knots, what compass heading should be maintaned while crossing the river? What is the speed of the boat relative to the land?
Pls help me.. I cant understand
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