The mass m = 1 kg, the spring constant k = 200 N/m. and the unstretched length of the spri...

The mass m = 1 kg, the spring constant k = 200 N/m. and the unstretched length of the spring is 0.1 m. When the system is released from rest in the position shown, the spring contracts, pulling the mass to the right. Use conservation of energy to determine the magnitude of die velocity of the mass when the string and the spring are parallel.