A book has a mass of $400\,\text{g}$. The area of the book touching a table measures $0.10\,\text{m} \times 0.20\,\text{m}$. The gravitational field strength $g$ is $10\,\text{N kg}^{-1}$. What pressure does the book exert on the table?
- A$0.08\,\text{N m}^{-2}$
- B$8.0\,\text{N m}^{-2}$
- C$20\,\text{N m}^{-2}$
- D$200\,\text{N m}^{-2}$