Question

a block on a horizonatal surface

a 0.23kg block on a horizontal frictionless surface is attached to a spring whose force constant is 500N/m. The block is pulled from its equilibrium position at x=0 mto a displacement x = +0.080 m and is released from rest. The block then executes simple harmonic motion along the x-axis (horizontal). the velocity of the block attime t= 0.70 s is closest to:
A- 4 m/s
b- zero
c- -0.3 m/s
d- -4 m/s
e- 0.3 m/s

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