Question

what are the different units to measure speed? when is each unit used​

Answer 1

Answer:

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.

Hope it helps you dear......

Answer 2

.

Speed is defined as

The rate of change of position of an object in any direction.

It is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude.

Speed Formula

The formula of speed is given in the table below:

s=dt

Where,

s is the speed in m.s-1

d is the distance traveled in m

t is the time taken in s