Question

Solve the problem with complete and proper solution. Consider a physics bool with a mass of 1.2 kg and its front cover measures 22 cm with a thickness of 3.5 cm. Calculate the pressure it exerts on a table when lying

A) flat

B) on its spine

Answer 1

A) flat:

$$p=mg/a^2=243\text{ Pa}.$$

B) on its spine:

$$p=mg/(ab)=1527\text{ Pa}.$$