Physics

Problem

Water flows through a horizontal pipe whose internal diameter decreases uniformly from

6\,\text{cm}

3\,\text{cm}

. If the speed of water in the wider section is

0.8\,\text{m s}^{-1}

, the speed in the narrower section is a)

1.6\,\text{m s}^{-1}

3.2\,\text{m s}^{-1}

0.8\,\text{m s}^{-1}

2.4\,\text{m s}^{-1}