Problem 4-46: When a bullet is fired from a rifle, the plot of the pressure in the barrel versus the time be- tween the firing and the bullet's exit from the barrel is sketched in Figure P4-46. Assuming the friction be- tween the barrel and the bullet is negligible and not- ing that the bullet weighs 0.025 lb with a diameter of 0.35 in., estimate the speed at which the bullet exits the barrel.

Problem 4-46: When a bullet is fired from a rifle, the plot of the pressure in the barrel versus the time be- tween the firing and the bullet's exit from the barrel is sketched in Figure P4-46. Assuming the friction be- tween the barrel and the bullet is negligible and not- ing that the bullet weighs 0.025 lb with a diameter of 0.35 in., estimate the speed at which the bullet exits the barrel.