A spacecraft of mass m1 = 4673 kg with a speed v1i=5.0 ×103 m/s approaches Saturn which is moving in the opposite direction with a speed vs=9.6×103 m/s. After interacting gravitationally with Saturn, the spacecraft swings around Saturn and heads off in the opposite direction it approached. The mass of Saturn is ms = 5.69 × 1026 kg. Find the final speed (in m/s) of the spacecraft after it is far enough away from Saturn to be nearly free of Saturn's gravitational pull.
v1f=
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http://www.learningace.com/doc/2339465/7e7ffe3cc6dd88b45b69cdef6aa9ec29/ic_sol_w07d3-2