Question

what is average speed .what is the s.i unit of speed , light , sound ​

Answer 1

Average speed is the total speed upon 2

OR

Speed = distance × time / 2

meter per second is unit of speed

PLEASE MARK IT AS BRAINLIEST

Answer 2

Answer:

Average speed: average speed of an object is the total distance traveled by the object divided by the elapsed time to cover that distance.

The SI unit of speed is the metre per second (m/s)

Light: Light is a form of electromagnetic radiation with a wavelength which can be detected by the human eye.

Sound: vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.