Question $20(3\mathrm{.}5$ points$)$

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A $3\mathrm{.}00-$ kg object is attached to one end of a horizontal spring that has a negligible mass and a spring constant of $150\frac{N}{m}.$ The other end of the spring is fixed to a wall. The spring is compressed by $10\mathrm{.}0$ cm from its equilibrium position and released from rest. What is the speed when the object is at the equilibrium position?

$5\mathrm{.}00\frac{m}{s}$

$0\frac{m}{s}$

$70\mathrm{.}7\frac{m}{s}$

$0\mathrm{.}707\frac{m}{s}$