Question

3. There standard unit of distance is___
and standard unit of speed is___
4. The speed of fast moving objects like cars and trains is usually expressed in the unit of___
5. The quantity which is made to vary at our will is called___​

Answer 1

Answer:

m

m/s

km/hr

hope it helps

Answer 2

3 ) meter

speed: km/hr

4) kilometer (km)