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a 600 kg toy car moving at 3 m/s collides and hooks up with a 900 kg toy car at restand they move off together. What is their final velocity?

  • science -

    Hint: Total linear momentum is conserved.

    M1*Vinitial = (M1 + M2)*Vfinal

    600*3 = 1500*Vfinal

    Solve for Vfinal

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