A100 kg roller coaster car is located at the top of a hill where the height is 20 m. what is the velocity when it reaches the bottom of 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