Physics

Problem

A submarine has a mass of

8000\,\text{kg}

(excluding ballast water) and a hull volume of

9\,\text{m}^3

. How much sea water of density

1025\,\text{kg\,m}^{-3}

must be pumped into its ballast tanks so that the submarine becomes neutrally buoyant? a)

1470\,\text{kg}

1225\,\text{kg}

1000\,\text{kg}

9225\,\text{kg}