A 200 Kg Mass Is Connected to a Spring with a a Spring

Multiple Choice

A 2.00 kg mass is connected to a spring with a spring constant of 900 N/m.The displacement is given by the expression x(t) = 12.0 cm sin( $\omega$ t) .What is the frequency of the simple harmonic motion?

A) 5.02 Hz
B) 4.21 Hz
C) 3.38 Hz
D) 2.56 Hz
E) 2.05 Hz