vectors

  1. I

    Physics question- vectors and boats?

    A boat is pointed straight across a river (east) and is moving at a speed of .55m/s relative to the water. The current of the river is south at .30m/s. How long does it take the boat to cross the river if the river is 65m wide? Can someone explain to me how to solve this problem? Thanks in advance.
  2. Z

    Vectors: Plane travels with air speed 85knots, at bearing of 042 deg. A S-W

    wind (south west) is 15 knots? Vectors: Plane travels with air speed 85knots, at bearing of 042 deg. A S-W wind (south west) is 15 knots? Find the ground speed and true course.
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