Determine Velocity - Example with Solution | PHYS 200, Assignments of Physics

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Example 6: Chapter 7, #22 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 0.010 kg and its velocity is +720 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 her recoil velocity be she shoots a blank cartridge that ejects a mass of 5.0x10~ kg at a velocity of +720 m/s? y Fpl v, = ~ we —s Vg Z a) cod WM oe We a\ 1 t A) Wse Censervatien ot lixear pemaatows ge Ap n & Vegt = St Wat pe bytes {le = 2h, ac OP "6 e wll yy at EP> d a a; P, = Ys PP C jest before Phe gun is fired ) ped becouse . 7 Rabies rs pron s O - Fallet t Persets O = MBVg~ Mp Vp used pe me Mp Vp mg Vg Vo = Me Ye Grolaks jf 720 tals) Mp Stleg Vet Ol m/s tw dle left thet cM anges Grew A) rs M, , the masf af the hulle? Vo = MaVe _ (S,0x6"Y kes (720 m/c) Me S| leg Ve Tel xt > m/s he the lef” e