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Physics, 07.03.2020 01:01 stayces6

A bullet is fired through a board, 14.0 cm thick, with its line of motion perpendicular to the face of the board. If it enters with a speed of 450 m/s and emerges with a speed of 220 m/s, what is the bullet's acceleration as it passes through the board, in units of km/s2 , assuming constant acceleration?

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A bullet is fired through a board, 14.0 cm thick, with its line of motion perpendicular to the face...
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