A 17,000-kg jet takes off from an aircraft carrier via a catapult (Fig. 6-39a). The gases thrust

Question:

A 17,000-kg jet takes off from an aircraft carrier via a catapult (Fig. 6-39a). The gases thrust out from the jet's engines exert a constant force of 130 kN on the jet; the force exerted on the jet by the catapult is plotted in Fig. 6-39b. Determine the work done on the jet:
(a) By the gases expelled by its engines during launch of the jet;
(b) By the catapult during launch of the jet.