Physics

A gun is fired vertically into a 1.60 kg block of wood at rest directly above it. If the bullet has a mass of 21.0 g and a speed of 195 m/s, how high will the block rise into the air after the bullet becomes embedded in it?

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  1. initial momentum = .021 *195
    final momentum = (.021+1.6)Vi
    Vi = 2.53

    (1/2) m Vi^2 = m g h
    h = Vi^2/2g

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