There are only 3 components if the force/acceleration vector ISN'T along the same line as the reference axis. Why would anyone do that unless there are other forces/vectors/axes involved ?
There are readily available 240 -> 120V transformers available for using power tools on building sites. They are generally "autotransformers" in that the secondary is simply half way through the primary i.e. centre tap, no isolation. You CAN use any twin-primary transformer by just connecting...