Energy transformations in a watefall?

One of the most common energy transformations is the transformation between potential energy and kinetic energy. In waterfalls such as Niagara Falls, potential energy is transformed to kinetic energy. The water at the top of the falls has gravitational potential energy. As the water plunges, its velocity increases. Thanks to google LOL :)

the components of a vector are the parts of the vectors that are to each other.

b perpendicular