A mass m = 0.1 kg is hanging from a spring of unknown spring constant k. The mass?s position y is measured from the attachment point of the spring, as shown. You observe the position vs time curve below.

A. What are the period T and amplitude A of the oscillation? What is the equilibrium length of the spring (with the hanging mass attached)? IPLS

B. Write down a function y(t) that describes the position of the mass. Think carefully about the phase shift!

C. What is the spring constant k? As always, include appropriate units.

D. If you doubled k, what would happen to the period T? If you doubled k and doubled m, what would happen to the period?

y (m) 1.5 ww 0.5 05 2,5 t(s) y