A mass is attached to a hanging spring and undergoes simple harmonic motion about an equilibrium location at y = 0. The displacement of the mass (in cm) is given by y=10cos(πt/6) where t is the number of seconds since the mass was initially pushed or pulled from equliibrium. Assume positive displacement means the mass is above equilibrium.
List the first TWO times the mass passes through the equilibrium location, separated by commas.
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