A 80 g bullet is fired from a rifle having a barrel 0.580 m long. Assuming the origin is placed where the bullet begins to move, the force (in newtons) exerted by the expanding gas on the bullet is 17000 + 9000x - 20000x2, where x is in meters.
(a) Determine the work done by the gas on the bullet as the bullet travels the length of the barrel.
(b) If the barrel is 1.10 m long, how much work is done, and how does this value compare to the work calculated in part (a)?
(ii) .............. (work done with the 1.10 m barrel / work done with the 0.580 m barrel