Physics

Problem

A uniform wooden log of density

600\,\text{kg}\,\text{m}^{-3}

2\,\text{m}

long and has a cross-sectional area of

200\,\text{cm}^2

. It floats horizontally in river water (density

1000\,\text{kg}\,\text{m}^{-3}

). Calculate the length of the log that is above the water surface.