There are two springs attached to a mass with an unknown weight. The springs have a stiffness of k = 50 N/m with an unstretched length of 5 m. When the springs are horizontal and unstretched, the unknown mass is released from rest. The mass falls 4m and the mass reaches its maximum velocity.   1. Find acceleration on the mass at its maximum velocity.   2. Find the mass of the mass.   3. To find maximum velocity, use the work-energy.

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