A bullet moving with a speed of 200m/s can penetrate a plank 4cm thick. What should be the speed to penetrate the same plank up to 10 cm?

asked Jun 8, 2024 232k views

5 votes

by Robev

8.3k points

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3 votes

500
4/200 —> 10/???
1/50 x 10/10 = 10/500

Skeolan answered Jun 12, 2024

7.8k points

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