2) When a bullet is fired from a rifle the gas pressure in the barrel varies as shown below: Pressure, (lb/in.2) 60,000 50,000 40,000 30,000 20,000 10,000 0 0 5 10 15 20 20 x (in.) 25 The rifle barrel is 2 feet long and has a 0.25 inch diameter. If the bullet weights 0.025 lb and friction forces can be neglected as compared to the gas force, estimate the muzzle velocity for this rifle. FULL CREDIT AWARDED ONLY FOR CORRECT FBD & KFD INCLUDED IN SOLUTION ANS. V=2311 fps (POINT OF REFERENCE: 30-06 HAS 2400 fps FOR 220 GRAIN (1/2 OZ.) BULLET)
2) When a bullet is fired from a rifle the gas pressure in the barrel varies as shown below: Pressure, (lb/in.2) 60,000 50,000 40,000 30,000 20,000 10,000 0 0 5 10 15 20 20 x (in.) 25 The rifle barrel is 2 feet long and has a 0.25 inch diameter. If the bullet weights 0.025 lb and friction forces can be neglected as compared to the gas force, estimate the muzzle velocity for this rifle. FULL CREDIT AWARDED ONLY FOR CORRECT FBD & KFD INCLUDED IN SOLUTION ANS. V=2311 fps (POINT OF REFERENCE: 30-06 HAS 2400 fps FOR 220 GRAIN (1/2 OZ.) BULLET)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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This is not a quiz question. It is part of a review packet. Free Body Diagram and Kinetic Free Diagram needed.
Transcribed Image Text:2) When a bullet is fired from a rifle the gas pressure in the barrel varies as shown below:
Pressure, (lb/in.2)
60,000
50,000
40,000
30,000
20,000
10,000
0
0
5
10
15
20
20
x (in.)
25
The rifle barrel is 2 feet long and has a 0.25 inch diameter. If the bullet weights 0.025 lb and friction
forces can be neglected as compared to the gas force, estimate the muzzle velocity for this rifle.
FULL CREDIT AWARDED ONLY FOR CORRECT FBD & KFD INCLUDED IN SOLUTION
ANS. V=2311 fps (POINT OF REFERENCE: 30-06 HAS 2400 fps FOR 220 GRAIN (1/2 OZ.) BULLET)
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