A toy rocket is propelled upward by a spring. The spring has a natural length of 11.5 centimeters, and is pressed down 5.25 centimeters with the rocket attached. When the spring is released, the rocket flies up. When the spring is back to its natural length, the rocket is no longer in contact with the spring. The spring has effectively no mass and a spring constant of 3650 N/m. The rocket has a mass of 0.235 kg, and is so aerodynamic that we can neglect air resistance. Required:
How high will the rocket go?