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(1.) A police officer fires a bullet of mass 50 {gm} with spee

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(1.) A police officer fires a bullet of mass $50 gm$ with speed $400 m / s$ on soft plywood of thickness $3 cm$ . The bullet emerges with only $25%$ of it's kinetic energy. What is total minimum thickness of plank required to complétely stop the bullet?

Name: Video solution 1: (1.) A police officer fires a bullet of mass 50gm with speed 400 m/s on soft plywood of thickness 3 cm. The bullet emerges with only 25% of it's kinetic energy. What is total minimum thickness of plank required to complétely stop the bullet?
Uploaded: 2022-11-16T12:35:42.000Z
Duration: 4 min
Description: Video solution 1: (1.) A police officer fires a bullet of mass 50gm with speed 400 m/s on soft plywood of thickness 3 cm. The bullet emerges with only 25% of it's kinetic energy. What is total minimum thickness of plank required to complétely stop the bullet?

$1 cm$
$2 cm$
$4 cm$
None of the above

Views: 5,613 students

Updated on: Nov 16, 2022

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(1.) A police officer fires a bullet of mass

50 gm

with speed

400 m / s

on soft plywood of thickness

3 cm

. The bullet emerges with only

25%

of it's kinetic energy. What is total minimum thickness of plank required to complétely stop the bullet?

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Uploaded on: 11/16/2022

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Ojasv Agarwal

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Teaches : Physics, Mathematics

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Question Text	(1.) A police officer fires a bullet of mass $50 gm$ with speed $400 m / s$ on soft plywood of thickness $3 cm$ . The bullet emerges with only $25%$ of it's kinetic energy. What is total minimum thickness of plank required to complétely stop the bullet?
Updated On	Nov 16, 2022
Topic	Thermodynamics
Subject	Physics
Class	Class 11
Answer Type	Video solution: 1
Upvotes	80
Avg. Video Duration	4 min

(1.) A police officer fires a bullet of mass $50 gm$ with speed $400 m / s$ on soft plywood of thickness $3 cm$ . The bullet emerges with only $25%$ of it's kinetic energy. What is total minimum thickness of plank required to complétely stop the bullet?

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