Question

Which statement best explains acceleration? It is the total distance covered over a period of time. It is a change in velocity over a period of time. It is a change in displacement over a period of time. It is a change in direction over a period of time.

Answer 1

Acceleration is the ratio of

               a change in velocity
                           to
     the time over which the change happened.

Answer 2

Answer: Option (c) is the correct answer.

Explanation:

Acceleration is defined as the change in velocity over a period of time.

Mathematically,       $a = \frac{dv}{dt}$

where                dv = change in velocity

                          dt = change in time

Thus, we can conclude that out of the given options, the statement acceleration is a change in displacement over a period of time best explains acceleration.