Question

. Which of the following statements is accurate?

A. If an object's velocity is changing, it's either experiencing acceleration or deceleration.
B. If an object's velocity decreases, then the object is accelerating.
C. If an object is said to be decelerating, its velocity must be increasing.
D. If an object's velocity remains constant, its acceleration must be increasing.

Answer 1

A. If an object's velocity is changing, it's either experiencing acceleration or deceleration.

Answer 2

A, acceleration and deceleration are measures of velocity changing.