Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.0 m/s and a mass of 0.52 kg. Cart 2 has a mass of 0.73 kg. (NEED HELP WITH PARTS A+C)   (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second?   (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is zero?   (ALREADY SOLVED - No it doesn't)   (c) Determine the system's kinetic energy in joules in order to substantiate your answer to part (b).

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