French Meaning: The name Jocelyn is a French baby name. In French the meaning of the name Jocelyn is: Medieval male name adopted as a feminine name. German Meaning: The name Jocelyn is a German baby name.
The metric unit (in SI) for time is the second (s). The official definition of second is now (after CIPM): the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom; this definition refers to a caesium atom at rest at a temperature of 0 K.
Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used.