Physics

A 2.60-kg block is attached to a horizontal spring that has a spring constant of 214 N/m. At the instant when the displacement of the spring from its unstrained length is -0.115 m, what is the acceleration a of the object? In your answer, be sure to include the proper plus or minus sign.

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asked by Jack
  1. The force that the spring exerts
    F=-kx=ma

    a=-k(-.115)/2.60 so compute

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