A 2.0 kg block is pressed up against a spring (k = 44 N/m) that is attached to a wall as shown. The block is held so that there is 1.2 J stored in the spring and then the block is released from rest. If there is no friction, what is the speed of the block when the energy stored in the spring is 0 J?

A 2.0 kg block is pressed up against a spring (k = 44 N/m) that is attached to a wall as shown. The block is held so that there is 1.2 J stored in the spring and then the block is released from rest. If there is no friction, what is the speed of the block when the energy stored in the spring is 0 J?