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
