A 55-g bullet is fired from a rifle having a barrel 0.564 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in nektons) exerted by the expanding gas on the bullet is 13800 + 9500x - 23250x2, where x is in meters.
1. Decide the work done by the gas on the bullet as the bullet travels the length of the barrel.
kJ
2. If the barrel is 0.94 m long, how much work is done?
kJ
3. How does this value compare with the work computed in part (a)?
Percent difference = %