Question

Why does an object accelerate when it falls toward Earth surface?

Answer 1

because of the earth gravity. gravity is one of things that holds us down and if u have something like say i have a basketball and u drop it off of a 10 story building its going to fall at a rate that is faster then 10 mph. so ur answer would be gravity

i hope this helps u XD plz tell me if i'm wrong

Answer 2

Because the constant force of gravity is acting on it, and the acceleration of an object is equal to( net force acting on the object) divided by( the objects mass).