Question

what is speed or difine speed n the unit of speed​

Answer 1

Speed is a way of measuring how quickly something is moving or being done, or something moving fast.

Hope this helps you friend

Thanks ✌️ ✌️

Answer 2

HEY MATE----

HERE IS YOUR ANSWER

**************************

the rate at which someone or something moves or operates or is able to move or operate.

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