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A $5.00-8$ bullet is fired borizontally into a 1.20 $\mathrm{kg}$ wooden block resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.20 . The bullet remains embedded in the block, which is observed to slide 0.230 $\mathrm{m}$ m along the surface before stopping. What was the initial speed of the bullet?

$\overrightarrow{\mathrm{v}}_{b 1}=229 \mathrm{m} / \mathrm{s}$

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