Question

the basic unit of speed is​

Answer 1

metre per second

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.

Answer 2

we know that the basic unit of speed is = meter per second

Hence, this is the answer.

hope its helps you