Question: Question 3. A fourth 1kg-magnet, which moves on leftward direction is put on the track between the 10 kg and 3kg magnets. (S pole

Question 3. A fourth 1kg-magnet, which moves on leftward direction is put on the track between the 10 kg and 3kg magnets. (S pole of 10 kg magnet faces to N pole of 1kg magnet). If the velocity of the train of four magnets is zero after the collision, what is the initial velocity of the 1kg magnet? E)58m/s C)38m/s D)48m/s A)18m/s B)28m/s

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