A 4500-kg helicopter accelerates upward at 2.0m/s2 what lift force is exerted by the air on the helicopter?

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 .

it may be wrong but i think its a

higher potential

explanation:

because it is in a high speed so it must move into a of high potential