Homework Help: Physics

Posted by Ricardo on Friday, December 14, 2012 at 9:43pm.

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 - drwls, Saturday, December 15, 2012 at 2:27am
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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