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

question 56

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.

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