Question

Define following & write their SI units 1) Distance 2) Displacement 3)speed 4) Velocity

Answer 1

Answer:

1) Distance-Distance is the length of the route between two points. The SI unit for distance is the meter.

2) Displacement-Displacement is the total distance travelled by the body. The S. I. unit is kilometre

3)Speed-Speed is defined as the rate of change of distance with time. The S.I. unit of time is metre per sec.

4) velocity-Velocity is defined as the rate of change of distance of the body with respect to time. Its unit in SI is km/s