A duck flying due south for the winter at 10. 0 m/s meets a wind gust out of the north of 2. 5 m/s. What is the resultant velocity of the duck?.

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .