A 20 Kg Mass Is Connected to a Spring with a a Spring

Multiple Choice

A 2.0 kg mass is connected to a spring with a spring constant of 9.0 N/m. The displacement is given by the expression x(t) = (12 cm) sin(ω t) . What is the amplitude of the motion?

A) 8.0 cm
B) 12 cm
C) 20 cm
D) 24 cm
E) 30 cm