Yes. That's a good description of the motion of a bullet fired from a gun.
Chat with our AI personalities
only one
This is a line. (It goes on forever both ways. It has one dimension because there is only one direction of motion on the line: forwards and backwards (you can't turn). Two dimensions allows for left and right, and three dimensions allows for up and down.)
You can only make one triangle with the given units
A ray can be in 2 dimensions, in 3 dimensions, or in fact in any number of dimensions.
You need only one to completely describe its dimensions, although you can make lots of measurements.