In 13.9 s, 278 bullets strike and embed themselves in a wall. The bullets strike the wall perpendicularly. Each bullet has a mass of 5 x10-3 kg and a speed of 977 m/s. (a) What is the average change in momentum per second for the bullets? (b) Determine the averageforce exerted on the wall. (c) Assuming the bullets are spread out over an area of 3.17 x 104 m² obtain the average pressure they exerton this region of the wall.(a) Number i(b) Number i(c) NumberiUnitsUnitsUnits

i) Change in momentum/second=m=5*10-3 kgnumber of bullets n=278v=0 m/su=977 m/st=13.9 s

Answered: (a) Number (b) Number (c) Number i i…

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(a) Number (b) Number (c) Number i i Units Units Units < <

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter22: Introduction To Percents

Section: Chapter Questions

Problem 1A

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Question

In 13.9 s, 278 bullets strike and embed themselves in a wall. The bullets strike the wall perpendicularly. Each bullet has a mass of 5 x
10-3 kg and a speed of 977 m/s. (a) What is the average change in momentum per second for the bullets? (b) Determine the average
force exerted on the wall. (c) Assuming the bullets are spread out over an area of 3.17 x 104 m² obtain the average pressure they exert
on this region of the wall.
(a) Number i
(b) Number i
(c) Number
i
Units
Units
Units

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