A 400 Kg Mass Is Connected to a Spring with a a Spring

Multiple Choice

A 4.00 kg mass is connected to a spring with a spring constant of 9.00 N/m.The velocity is given by the expression v(t) = 8.00 cm/s sin( $\omega$ t) + 10.0 cm/s cos( $\omega$ t) .What is the maximum velocity of the simple harmonic motion?

A) 41.0 cm/s
B) 32.8 cm/s
C) 24.5 cm/s
D) 20.5 cm/s
E) 12.8 cm/s