Physics

A bullet traveling at 200 m/s strikes a soft wood and penetrates 4.5 cm through it before coming to rest. Calculate the bullet's average ation

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  1. V^2 = Vo^2 + 2a*d.
    V = 0, Vo = 200 m/s, d = 0.045 m., a = ?.

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  2. -4.44*10^5m/s^2

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  3. -4.44m/s2

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