Relative Velocity Find Angle and the time to cross the river MCV4U Vectors - EDEXCEL - GCSE

A boat is capable of 20 km/h in still water. You wish to cross the river to a point 0.6 km upstream from your present position. If the current is 8 km/h and the river is 1.5 km wide, at what angle to the bank you steer the boat? How long will it take you to cross?

A boat is capable of 20 km/h in still water. You wish to cross the river downstream so that the angle the boat’s push makes with the bank is 50.
At what angle to the bank should the boat steer if the current is 8 km/h? How long will it take you to cross the river 1.7 km wide?
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