A fighter jet accelerates from rest along the flight deck of an aircraft carrier. At take-off, the jet has a speed of 80 m/s80\text{ m/s}80 m/s. The mass of the jet is 12 000 kg12\,000\text{ kg}12000 kg.
Calculate the kinetic energy of the jet at take-off.
An electromagnetic catapult system provides a constant accelerating force on the jet over a distance of 160 m160\text{ m}160 m along the deck. Calculate the average resultant force exerted on the jet. Assume that all of the kinetic energy at take-off is due to the work done on the jet by the catapult system.
533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.