A ferry boat is crossing a river that is 8.5 x 10^2 m wide.
The average velocity of the water relative to the shore is 3.8 m/s E and the average velocity of the boat relative to the water is 4.9 m/s S.
How long does it take for the boat to get across?
The Attempt at a Solution
The velocity of the boat relative to the shore is 6.2 m/s [52° E of S].
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