A battleship that is 5.20×107 kg and is originally at rest fires a 1,160-kg artillery shell horizontally with a velocity of 551 m/s. Hint a. If the shell is fired straight aft (toward the rear of the ship), there will be negligible friction opposing the ship's recoil. Calculate the recoil velocity of the ship. Urecoil = m/s b. Calculate the increase in internal kinetic energy (that is, for the ship and the shell). This energy is less than the energy released by the gun powder--significant heat transfer occurs. AKE = MJ

A battleship that is 5.20×107 kg and is originally at rest fires a 1,160-kg artillery shell horizontally with a velocity of 551 m/s. Hint a. If the shell is fired straight aft (toward the rear of the ship), there will be negligible friction opposing the ship's recoil. Calculate the recoil velocity of the ship. Urecoil = m/s b. Calculate the increase in internal kinetic energy (that is, for the ship and the shell). This energy is less than the energy released by the gun powder--significant heat transfer occurs. AKE = MJ