A 2.0-kg mass attached to a spring whose force constant is 10.0 N/m is undergoing simple harmonic motion. If the initial displacement of the mass is 3.0 cm, the maximum potential energy of the system is
A) 2.5 J.
B) 150 mJ.
C) 4.5 mJ.
D) zero.

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The Answer of A 2.0-kg mass attached to a spring whose force constant is 10.0 N/m is undergoing simple harmonic motion. If the initial displacement of the mass is 3.0 cm, the maximum potential energy of the system is
A) 2.5 J.
B) 150 mJ.
C) 4.5 mJ.
D) zero.

A 20-Kg Mass Attached to a Spring Whose Force Constant Is