Physics

Problem

A rectangular hatch on a submerged research vessel measures

0.60\,\text{m}

0.80\,\text{m}

. The external seawater pressure is

3.5\times10^{5}\,\text{Pa}

, while the internal air pressure is

1.0\times10^{5}\,\text{Pa}

. What is the net force tending to push the hatch inward? a)

1.68\times10^{5}\,\text{N}

2.16\times10^{5}\,\text{N}

1.2\times10^{5}\,\text{N}

1.5\times10^{5}\,\text{N}