[单选题]
10.09: A mass is connected to the end zq1q:4)pees bof a sprin:o be 8.uf/) qdotpkp/g and undergoes simple harmonic oscillation. The graph provided shows the position of the mass as measured froebd q.) /u:okfo/pt p8m the floor as a function of time.
What is the amplitude of the mass’s oscillation (in units of meters)?