A 028-Kg Block on a Horizontal Frictionless Surface Is Attached to to an Ideal

question 12

Multiple Choice

A 0.28-kg block on a horizontal frictionless surface is attached to an ideal massless spring whose spring constant is 500 N/m. The block is pulled from its equilibrium position at x = 0.00 m to a displacement x = +0.080 m and is released from rest. The block then executes simple harmonic motion along the horizontal x-axis. When the displacement is x = -0.052 m, find the acceleration of the block.

• A) 92 m/s²
• B) 46 m/s²
• C) 69 m/s²
• D) 230 m/s²
• E) 280 m/s²

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