Q2: A bullet (i ala) 2 cm long is fired at 420 m's and passes straight through a 10 cm thíck wooden-board, penetrate (aa) at 280 m's. Bullet wooden board (a) What is the average acceleration of the bullet through the board? (b) What is the total time that the bullet is in contact with the board? (e) What minimun thickness could the board have if it was supposed the buller?

Q2: A bullet (i ala) 2 cm long is fired at 420 m's and passes straight through a 10 cm thíck wooden-board, penetrate (aa) at 280 m's. Bullet wooden board (a) What is the average acceleration of the bullet through the board? (b) What is the total time that the bullet is in contact with the board? (e) What minimun thickness could the board have if it was supposed the buller?

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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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

Q2:
A bullet y aln) 2 cm long is fired at 420 m/s and passes straight through a 10
cm thick wooden-board, penetrate ( ) at 280 m/s .
Bullet
wooden
board
(a) What is the average acceleration of the bullet through the board?
(b) What is the total time that the bullet is in contact with the board?
(c) What minimun thickness could the board have if it was supposed the buller?

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