A 37-Kg Block on a Horizontal Frictionless Surface Is Attached to to an Ideal

Multiple Choice

A 3.7-kg block on a horizontal frictionless surface is attached to an ideal spring whose force constant (spring constant) is $450 \mathrm {~N} / \mathrm { m }$ The block is pulled from its equilibrium position at x = 0.000 m to a position x = +0.080 m and is released from rest. The block then executes simple harmonic motion along the horizontal x-axis. The maximum elastic potential energy of the system is closest to

A) 1.4 J.
B) 1.3 J.
C) 1.6 J.
D) 1.7 J.
E) 1.8 J.