A boat is heading north as it crosses a wide river with a speed of 8.00 km/h relative to the water. The river has a uniform velocity of 6.00 km/h dues east. Determine the magnitude and direction of the boat's velocity with respect to an observer on the riverbank. (Note write all the possible direction of the motion)
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Expert's answer
2020-11-30T14:51:48-0500
A boat must cross a river at direction "arcsin\\frac 68\\approx" 49° N of W.
Magnitude is "\\sqrt{8^2-6^2}=\\sqrt{28}\\approx 5.29 ~\\frac{km}{h}."
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