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Calculate the speed of an 7.8×104 kg airliner with a kinetic energy of 1.0 × 109 J.
Answer in units of m/s.

  • Physics -

    Use the definition of Kinetic Energy, (M/2)V^2, and solve for V.

    A little algebraic manipulation should convince you that

    V = sqrt[2*(K.E.)/M]

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