A block slides down a frictionless inclined plane. All of the following are correct except for
A) the velocity of the block changes with time.
B) the acceleration of the block is less than the acceleration of gravity.
C) the normal force on the block changes with time.
D) the normal force on the block is less than the weight of the block.

Question

Quizplus · Accepted Answer

The normal force on the block does not change with time when sliding down a frictionless inclined plane. It remains constant because it is determined by the weight of the block and the angle of the incline, neither of which changes.

A Block Slides Down a Frictionless Inclined Plane