A woman fires a rifle with barrel length of 0.5800 m. Let (0,0) be where the 75 g bullet begins to move, and the bullet travels in the +x-direction. The force exerted by the expanding gas on the bullet is (17,000 + 10,000x - 24,000x2) N, where x is in meters. (a) Calculate the work done (in kJ) by the gas on the bullet as the bullet travels the length of the barrel. (Enter your answer to at least two decimal places.) k]