What force causes a wagon to speed up as it rolls down a hill?

The answer would be "gravity" because gravity is pulling the wagon down the hill.

Ifound this on google “the middle ear contains three tiny bones known as the ossicles: malleus, incus, and stapes. the ossicles were given their latin names for their distinctive shapes; they are also referred to as the hammer, anvil, and stirrup, respectively.” i hope this you for what your looking for

Your answer is 1.5 hope i