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 speed of the block is:

A) 0.15 m/s
B) 0.24 m/s
C) 0.49 m/s
D) 0.69 m/s
E) 1.46 m/s