A 2.15 kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 18.7 N is required to hold the mass at rest when it is pulled 0.205 m from its equilibrium position (the origin of the x axis). The mass is now released from rest with an initial displacement of xi = 0.205 m, and it subsequently undergoes simple harmonic oscillations. Calculate the force constant of the spring.

1 answer

18.4N=k(.205) solve for k.