A 50-g bullet is fired from a rifle having a barrel 0.540 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 16350 + 10100x - 25500x2, 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 0.90 m long, how much work is done?
c. How does this value compare with the work calculated in part (a), percent difference= ?