A heavy toolbox that has a bottom surface area of 20.0 cm² is accidentally pressed inside of an automotive garage using a hydraulic lift. The hydraulic lift consists of a large piston that has a diameter of 30.0 cm and a small piston that has a diameter of 5.0 cm. The lift is operated by applying force on the small piston using a lever mechanism, that is similar to the one shown in the diagram below. The lever has a length of "𝐿". What is the pressure applied on the toolbox if 400 N is applied to the lever?

• A. $1.1\times 10^7\mathrm{~N}/\mathrm{m}^2$
• B. $1.4 \times 10^{7} \mathrm{~N} / \mathrm{m}^{2}$
• C. $2.8\times 10^7\mathrm{~N}/\mathrm{m}^2$
• D. $3.2 \times 10^{7} \mathrm{~N} / \mathrm{m}^{2}$

Answer: (B)