G weight of mass m=0.55kg.
G=m×g=k×dx, whre dx=32cm is the spring stretch, computed as the difference between the actual length and original length of the spring.
dx=32cm=0.32m
g=9.81m/s²
Thus we have:
m×g=k×dx
k=m×g/dx=0.55×9.81/0.32=16.86N/m
Answer: k=16.86N/