A bullet 2.50 cm long is fired at 450 m/s and passes straight through a12.0 cm thick board, exiting at 275 m/s. (a) What is the averageacceleration of the bullet through the board? (b) What is the total timethat the bullet is in contact with the board? (c) What minimum thicknesscould the board have if it was supposed to bring the bullet to a stop? *-6.4713 x 10^5, 5.1696 x 10^-4, 12.78O 6.4713 x 10^5, 5.1696 x 10^-4, 12.78O -5.28645 x 10^5, 4.2194 x 10^-4, 19.15O 5.28645 x 10^5, 4.2194 x 10^-4, 19.1510 points

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Science

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A bullet 2.50 cm long is fired at 450 m/s and

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 14CQ: If someone is riding in the back of a pickup thick and throws a softball straight backward, is it...

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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

A bullet 2.50 cm long is fired at 450 m/s and passes straight through a
12.0 cm thick board, exiting at 275 m/s. (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 minimum thickness
could the board have if it was supposed to bring the bullet to a stop? *
-6.4713 x 10^5, 5.1696 x 10^-4, 12.78
O 6.4713 x 10^5, 5.1696 x 10^-4, 12.78
O -5.28645 x 10^5, 4.2194 x 10^-4, 19.15
O 5.28645 x 10^5, 4.2194 x 10^-4, 19.15
10 points

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