A 93.9 g bullet is fired from a rifle having a barrel 0.256 m long. Assuming the origin is placed where the bullet begins to move, the force exerted on the bullet by the expanding gas is F=a+bx−cx2,where a2=18600N, b = 10800N/m, c = 26300 N/m2, with x in meters.
A) Determine the work done by the gas on the bullet as the bullettravels the length of the barrel. Answer in units of J.
B) If the barrel is 0.576 m long, how much work is done? Answer inunits of J.