A piston of area $0.1 \mathrm{~m}^{2}$ sits atop a container filled with water as shown in Figure P1.12. A U-tube manometer is connected to the container at one end. The other end is open to the atmosphere. If $h_{1}=50 \mathrm{~mm}$ and $h_{2}=120 \mathrm{~mm}$, what is the force, $P$, acting on the piston? The mass of the piston is $1 \mathrm{~kg}$.

Transcribed Image Text:

FIGURE P1.12 P Piston Water h Mercury Patm