1.5 kg block is attached to a horizontal spring, with the other end attached to a wall, and the block is sliding back and forth on a horizontal surface without friction. If the spring constant is 67 N/m, and the maximum compression of the spring is 0.40 m, what is the maximum speed of the block as it moves back and forth

1.5 kg block is attached to a horizontal spring, with the other end attached to a wall, and the block is sliding back and forth on a horizontal surface without friction. If the spring constant is 67 N/m, and the maximum compression of the spring is 0.40 m, what is the maximum speed of the block as it moves back and forth