A cart of mass 2.3 kg attached to a spring rolls along a level table as shown. The wheels of the cart are good, so friction is negligible on the cart. The rest length of the spring is 0.28 m and its spring constant is 27.3 N/m. At the position shown, the length of the spring is 0.76 m and  theta =33.1 degrees. what is the magnitude of the acceleration of the cart at the position shown?

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