Question

What is speed?name its SI unite

Answer 1

Speed means the rate at which someone or something moves or operates or is able to move or operate.
The SI Unit of Speed is m/s....

Answer 2

Speed has the dimensions of distance divided by time.The S.I unit of speed is the meter per second,but most common unit of speed in every day usege is the Kilometer per hour, or in the US and UK , per hour. SI unit M/S.