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A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.82 x 105 N. In being launched from rest it moves through a distance of 57.2 m and has a kinetic energy of 5.71 x 107 J at lift-off. What is the work done on the jet by the catapult?

  • Physics -

    F*X = 3.82*10^5*57.2 = 2.19*10^7 J
    is the work done by the engines.

    Subtract that from the final KE for the work done by the catapult.

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