Question

2.
What is Speed ? state it's unit.​

Answer 1

Answer:

The distance covered by an object in a unit time is known as speed.. Si unit of speed is m/sec

Answer 2

Speed 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 is a measure of how fast something is moving, or rather, how much distance is the object moving per unit time.

S.I unit :  m/s.