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26 Nov 2019
A boat, whose speed in still water is 3.00 {\rm m/s}, must cross a 280-{\rm m}-wide river and arrive at a point 120 {\rm m} upstream from where it starts. To do so, the pilot must head the boat at a 45.0 {\rm \circ} upstream angle . What is the speed of the river's current?
A boat, whose speed in still water is 3.00 {\rm m/s}, must cross a 280-{\rm m}-wide river and arrive at a point 120 {\rm m} upstream from where it starts. To do so, the pilot must head the boat at a 45.0 {\rm \circ} upstream angle . What is the speed of the river's current?