4. A ball is thrown with an initial velocity of 70 feet per second, at an angle of 35° with the horizontal. Find the vertical and horizontal components of the velocity.
5. A ship is heading due north at 12 mph. The current is flowing South 45° West at 4 mph. Find the actual direction and speed of the ship.
6. An airplane is flying in a direction of 65 degrees at 450 mph. A wind is blowing in a direction of 20 degrees at 35 mph. Find the actual speed and direction of the plane