Since the five forces applied are all in the same direction with the motion of the sled, to solve for the net force, add the five forces together.

`sum F = F_1 + F_2 + F_3 + F_4 +F_5`

`sum F = 6N + 6N + 6N + 6N + 6N`

`sum F = 30 N`

**Therefore, the net force is 30 Newtons.**