1) Two force, F1 = 80 N at an angle of 60o (1st Quadrant) and F2 = 60 N at an angle 45o (4th Quadrant) are applied to a

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1) Two force, F1 = 80 N at an angle of 60o (1st Quadrant) and F2
= 60 N at an angle 45o (4th Quadrant) are applied to a particle at
the origin. What third force F3 would make the net or resultant
force on the particle zero?
2) An airplane must fly at a ground speed of 425 km/h in a
direction of 10 degrees east of south to be on course and on
schedule. If the wind velocity is 25.0 km/h 40 degrees east of
north, in what direction and at what speed relative to the air must
the pilot fly?
Please show COMPLETE solution