If a block is set sliding on a huge imaginary frictionless plane in contact with Earth's surface, it will NOT sustain a constant speed because
A)a component of gravitational force parallel to the plane soon acts on it.
B)gravity gets weaker as distance increases.
C)it is not free from the shackles of Earth's gravity.
D)of its inertia.

Question

Quizplus · Accepted Answer

A component of gravitational force parallel to the plane will act on the block if the plane is not perfectly horizontal, causing it to accelerate or decelerate depending on the plane's orientation relative to the gravitational field.

If a Block Is Set Sliding on a Huge Imaginary