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An engine pulls a train of 20 freight cars, each having a mass of 4.8 x 10^{4 }kg with a constant force. The cars move from rest to a speed of 3.8 m/s in 16.3 s on a straight track. Neglecting friction, the force with which the tenth car pulls the eleventh one (at the middle of the train) is:


I have know idea how to approach this?..

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Last edited by muziqlover (2008-08-31 19:45:22)