If the acceleration vector of an object is directed anti-parallel to the velocity vector, then
A) the object is speeding up.
B) the object is slowing down.
C) the object is moving with a constant velocity.
D) the object is turning.
E) the object is at rest.

Question

Quizplus · Accepted Answer

The acceleration vector and velocity vector are anti-parallel, which means they are pointing in opposite directions. This implies that the object is experiencing a deceleration or is slowing down. If the acceleration vector were parallel to the velocity vector, then the object would be speeding up, and if the acceleration were perpendicular to the velocity vector, then the object would be turning.

If the Acceleration Vector of an Object Is Directed Anti-Parallel