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. Assume the mass of a bullet is 0.0264 kilogram and its velocity is +731m/s. Her mass (including the gun) is 45.3 kilogram.
(a) Obtain 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, determine what would be her recoil velocity if, instead, she shoots a blank cartridge that ejects amass of 0.000645 kilogram at a velocity of +731 m/s?