A 050-Kg Block Attached to an Ideal Spring with a Spring

Multiple Choice

A 0.50-kg block attached to an ideal spring with a spring constant of 80 N/m oscillates on a horizontal frictionless surface. The total mechanical energy is 0.12 J. The greatest extension of the spring from its equilibrium length is:

A) 1.5 * 10^-3 m
B) 3.0 *10^-3 m
C) 0.039 m
D) 0.054 m
E) 18 m