Physics, 06.11.2020 19:40 esmemaluma00
A steam catapult applies a very large force to supplement the engine thrust of a jet fighter as it takes off from an
aircraft carrier. The jet has a mass of 4000 kg and must reach its take off speed of 70 m/s at the end of the 220
m flight deck. What is the combined force of the catapult and engines? (Use the work-energy theorem)
Answers: 2
(1)
, 
- Initial and final translational kinetic energies of the jet fighter, measured in joules.
- Work done on the jet fighter due to the combined force of the catapult and engines, measured in joules. 
(2)
- Combined force of the catapult and engines, measured in newtons.
- Mass of the jet fighter, measured in kilograms.
- Length of the catapult, measured in meters.
, 
- Initial and final speeds of the jet aircraft, measured in meters per second. 
, 
, 
and 
, then the combined force of the catapult and engines is:![F = \frac{(4000\,kg)\cdot \left[\left(70\,\frac{m}{s} \right)^{2}-\left(0\,\frac{m}{s} \right)^{2}\right]}{2\cdot (220\,m)}](/tpl/images/0875/2352/52890.png)
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