A boat, whose speed in still water is 2.50 m / s, must cross a 285-m-wide river and arrive at a point 118m upstream from where it starts (Fig. 3-45). To do so, the pilot must head the boat at a 45.0° upstream angle. What is the speed of the river's current?

Transcribed Image Text:

118 m Finish River `current 285 m 45.0° Start Path of boat