The word "normal," as it applies to forces,means
A)usual.
B)mean.
C)average.
D)perpendicular.
E)straight up,in the direction opposite to the force of gravity.

Question

Quizplus · Accepted Answer

In physics, the term "normal force" refers to the force that acts perpendicular to the surface that an object is in contact with. It is not related to the common usage of "normal" meaning usual, mean, average, or any specific direction like straight up.

The Word "Normal," as It Applies to Forces,means