(a) Suppose you have a one-dimensional collision with m1 = 385 g and m2 = 390. g. The initial velocities are given to be v1i = 2.40 m/s, v2i = -1.30 m/s, and the final velocity of m2 is v2f = 1.30 m/s. What is the final velocity of m1 ?
______ m/s
(b) What are the initial and final kinetic energies of this system, before and after the collision?
ki = ______ J
kf = _______ J
(c) is this collision elastic? explain?
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