Question

MEDAL GIVEN TO CORRECT ANSWER.
A book with mass 2.3 kg sits on a table. What is the normal force on the book?

A. 22.5 N
B. 2.3 N
C. 18.3 N
D. 9.8 N

Answer 1

\[\sum(Fy)\]= 0 (because the system is in equilibrium) = N- mg
N=mg = 2.3*(9.8)= 22.5 N
The correct answer is A.