When a gun fires a bullet, the gun barrel acts as the tube, and the bullet acts as the cyl...

When a gun fires a bullet, the gun barrel acts as the tube, and the bullet acts as the cylinder in Prob. 4.40. Using the assumptions and result of that problem, determine the velocity of a bullet at the end of a 24 in. gun barrel, given that the bore diameter is 0.458 in., the bullet weight is 300 gr (7000 gr = 1 lb), the initial firing pressure is 27,000 psi, and the initial distance between the back of the bullet and the back wall of the firing chamber (i.e., s0 in Prob. 4.40) is

(a) 1.855 in. (this distance is realistic and accurate),

(b) 1.5 in.,and

(c) explain why the velocity of the bullet at the end of the gun barrel is lower in Part (b) when compared to Part (a).

Figure P4.41