The mass of a book is $400\text{ g}$. The part of the book that touches the table measures $0.10\text{ m} \times 0.20\text{ m}$. The value of the gravitational field strength $g$ is $10\text{ N kg}^{-1}$. What pressure is exerted on the table by the book?
- A$0.08\text{ N m}^{-2}$
- B$8.0\text{ N m}^{-2}$
- C$20\text{ N m}^{-2}$
- D$200\text{ N m}^{-2}$