A smooth block rests on the surface of a horizontal plane. As one end of the plane is slowly raised, the magnitude of the normal force on the block
A) decreases.
B) remains unchanged.
C) increases.
D) is unknown; insufficient information is given to answer this question.

Question

Quizplus · Accepted Answer

As the plane is raised, the component of gravitational force perpendicular to the plane decreases, thus reducing the normal force.

A Smooth Block Rests on the Surface of a Horizontal