posted by Anom .
A particle of mass m = 0.35 kg is oscillating on the end of a spring with amplitude 0.32 m. It is at its equilibrium position (x=0), moving in the positive x-direction, at t=0, and 0.18 s later it is at x=0.25 m.
a. What is the lowest possible value for the spring constant?
b. What is the second lowest possible value for the spring constant?