Answer
The spring constant of the springs is 33.3 N/m
Work Step by Step
The compressed spring will push in the opposite direction from the applied force $F$. The stretched spring will pull in the opposite direction from the applied force $F$. We can set up a force equation to find the spring constant of each spring.
$kx+kx = F$
$k = \frac{F}{2x}$
$k = \frac{2.0~N}{(2)(0.030~m)}$
$k = 33.3~N/m$
The spring constant of the springs is 33.3 N/m
