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.
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Transcribed Image Text: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.
40
30
( )
20
10
2.0
1.5
1.0
Time (msec)
0.5
0
FIGURE P4-46
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