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. If the initial velocity is 12.0 cm/s and the initial displacement is 4.00 cm, then what is the maximum velocity of the mass?

A) 20.3 cm/s
B) 19.8 cm/s
C) 15.5 cm/s
D) 13.4 cm/s
E) 11.5 cm/s