Answer:
 a = 0.701 m / s²
Explanation:
As the game is spinning the acceleration is centripetal
      a = v² /r
The park system after a small period of acceleration goes at a constant speed, for which we can use the relations of the uniform motion
      v = d / t
the distance of a circle is
      d = 2π r
we substitute
     a = (2π r / t) ² / r
     a = 4 pi² r / t²
     Â
let's calculate
     a = 4 pi² 12 / 26²
     a = 0.701 m / s²