Question

we calculate speed using the formula:
speed = distance/time.
velocity is speed in a given direction.
acceleration can occur when an object speeds up, slows down or a has a change in direction.

choose the correct answer.

what is an example of acceleration?

a car at a stop sign
a car at a red light
a car slowing down for a yellow light

Explanation:

Acceleration occurs with speed/velocity change (speed up, slow down, direction change). A car at stop/red light has constant speed (0), no acceleration. A car slowing for yellow light is decelerating (a type of acceleration as speed decreases).

Answer:

A car slowing down for a yellow light