Spring constant is 6.73 N/m
Step-by-step explanation:
For a spring mass system we have
Mass x Acceleration due to gravity = Spring constant x Elongation
mg = kl
Mass, m= 0.454 kg
Acceleration due to gravity, g = 9.81 m/s²
Spring constant,k = ?
Elongation, l = 0.662 m
Substituting
0.454 x 9.81 = k x 0.662
k = 6.73 N/m
Spring constant is 6.73 N/m