The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.017 kg and its velocity is +650 m/s. Her mass (including
the gun) is 51 kg. (a) What recoil velocity does she acquire in response to a single shot from a stationary position, assuming that no
external force keeps her in place? (b) Under the same assumption, what would be her recoil velocity if, instead, she shoots a blank
cartridge that ejects a mass of 5.0 x 10kg at a velocity of +650 m/s?