A 37 Kg Block on a Horizontal Frictionless Surface Is Attached

A 3.7 kg block on a horizontal frictionless surface is attached to a spring whose force constant is 450 N/m.The block is pulled from its equilibrium position at x = 0 m to a displacement x = +0.080 m and is released from rest.The block then executes simple harmonic motion along the x-axis (horizontal) .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

Correct Answer:

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