Physics

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1. Car A, with mass of 1250 kg, is travelling at 30 m/s to the east. Car B is a truck with mass of 2000 kg, travelling to the west at 25 m/s. Assume these two vehicles experience an inelastic collision but do not stick together, and Car A goes off 10 m/s to the west. What will be the resulting velocity of Car B?

  • Physics -

    change in momentum of car A = 1250 (40) = 50,000 toward the west

    so change in momentum of car B is 50,000 toward the east
    50,000 = 2000 (east velocity - -25)

    25 = east velocity + 25
    east velocity = 0

    stopped it dead in the water :)

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