Answer:
Spring constant, k = 283.33 N/m
Step-by-step explanation:
Given that,
Force acting on the spring, F = 8.5 N
Stretching in the spring, x = 3 cm = 0.03 m
Let k is the spring constant of the spring. It can be calculated using Hooke's law as :



k = 283.33 N/m
So, the spring constant of the spring is 283.33 N/m. Hence, this is the required solution.