three people are trying to move a box. which set of forces will result in a net force on the box of 20 N to the left

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 .

i think the answer is a and b

i wish you luck

80cm/s.

24cm/s.

53.3cm/s.