Chapter 1, Problem 1.40P

A piston $m_p=5\text{kg}$ , is fitted in a cylinder. $A=15{\text{cm}}^2$ , that contains a gas, The setup is in a centrifuge that creates an acceleration of $25{\text{m/s}}^2$ in the direction of piston motion toward the gas. Assuming standard atmospheric pressure outside the cylinder, find the gas pressure.