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    We can model a rocket and its exhaust with two ... ...

    We can model a rocket and its exhaust with two carts sitting on a level, frictionless one-dimensional track. The large cart (rocket) has a mass 10 kg, and the small cart (exhaust gas), 0.1 kg. There is a small explosive between them. At a certain time the explosive goes off and the two carts go flying apart. The less massive cart recoils with velocity 20 m/s. The explosion is over in about 0.2 s. What is the final velocity of the larger mass?
(A) 0.2 m/s
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 08. Momentum

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