A 020-Kg Object Is Oscillating on a Spring with a Spring

Multiple Choice

A 0.20-kg object is oscillating on a spring with a spring constant of k = 30 N/m.What is the potential energy of the system when the object's displacement is 0.040 m,exactly half the maximum amplitude?

A) 0.96 J
B) 0.024 J
C) 0.012 J
D) zero