Question

Select the correct answer.
A book is on the table. If the weight of the book is 25 newtons, what is the magnitude and direction of the normal force?
A.
2.5 newtons in the downward direction
B.
2.5 newtons in the upward direction
C.
25 newtons in the upward direction
D.
25 newtons in the downward direction
E.
25 newtons perpendicular to the gravitational force

Answer 1

The correct answer is: **C. 25 newtons in the upward direction.**

The normal force acts perpendicular to the surface and counteracts the weight of the book, which is 25 newtons downward. Therefore, the normal force must also be 25 newtons but directed upward to maintain equilibrium.