Which of the following examples demonstrates acceleration?

A boy running at a constant speed across the street.


A car traveling at 60 mph turns left around a curve.


A horse standing in a pasture.


A track star is maintaining the same speed as he crosses the finish line.

Respuesta :

The answer is A.) this is because he is moving at a rate that is unknown so we don't know if he is running slower or faster if he is, he is moving by accelerating up or down.
Hope I helped
TeenOlafLover <3