A box sits on an inclined plane without sliding.As the angle of inclination increases,the normal force
A)increases.
B)decreases.
C)does not change.
D)is directed upward.
E)is directed in the direction of the gravitational force.

Question

Quizplus · Accepted Answer

As the angle of inclination increases, the component of gravitational force acting on the box parallel to the inclined plane increases. This results in a decrease in the normal force acting on the box perpendicular to the inclined plane, leading to a decrease in the total force opposing the gravitational force. Therefore, choice B is correct as the normal force decreases.

A Box Sits on an Inclined Plane Without Sliding