A Red Rider bb gun uses the energy in a compressed spring to provide the kinetic energy for propelling a small pellet of mass 0.27 grams. By cocking the lever attached to the stock of the rifle, the spring (k = 1900 N/m) is compressed 9.5 cm from its equilibrium point. 1. What is the potential energy energy stored in the compressed spring?
2. What is the kinetic energy of the pellet when the spring is released?
3. What is the muzzle velocity of the bb?
4. If the rifle was modified so that the spring could be compressed twice as far, 19 cm, what would be the resultant muzzle velocity of the bb?