Final answer:
The force constant of the spring is 41.44 N/m.
Step-by-step explanation:
To find the force constant of the spring, you can use the formula:
T = 2π √(m/k)
where T is the period of oscillation, m is the mass, and k is the force constant.
Rearranging the formula:
k = (4π^2m)/T^2
Plugging in the values given:
k = (4π^2(0.43))/(0.64^2)
= 41.44 N/m