In the figure, block 1 (mass 3.2 kg) is moving rightward at 13 m/s and block 2 (mass 8.6 kg) is moving rightward at 2.9 m/s. The surface is frictionless, and a spring with a spring constant of k = 1300 N/m is fixed to block 2. When the blocks collide, the compression of the spring is maximum at the instant the blocks have the same velocity. Find the maximum compression.