Answer to Question #186158 in Physics for Cleo

Question

a student pressed a book between their hands. The forces their hand exerts on the front and back of book are perpendicular to the book and are horizontal. The book weighs 34.8N. The coefficient of static friction between their hands and the book is 0.319. To keep the book from falling, what is the magnitude of the minimum pressing force that each hand must exert?

Answer 1

$$W=2F_f=2\mu T\\34.8=2(0.319) T\\T=54.5\ N$$