Question

define and mention their SI units and CGS units (1) distance (2) displacement (3)speed (4)velocity​

Answer 1

Answer:

Explanation:

1) In Physics, distance is defined as the physical measurement of how far an object ... ..

Hence,S.I. unit of distance is meter(m). Hence,CGS unit of distance is centimeter(or cm). *1m=100cm,1kilogram=1000gram.

2)The SI unit of distance and displacement is the meter [m].

3) Speed is defined as the distance travelled by a body per unit time.

Its SI unit is m/s.

4)Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s) or as the

SI base unit of (m⋅s−1).

Unit of velocity in CGS system is cm/s. (Centimetre per second)

Answer 2

Explanation:

1. Distance

SI system is based on MKS system-

M= Meter(unit of distance & displacement)

K= Kilogram(unit of mass)

S= Second(unit of time)

Hence,S.I. unit of distance is meter(m).

CGS represents-

C=Centimeter(unit of distance & displacement)

G=Gram(unit of mass)

S=Second(unit of time)

Hence,CGS unit of distance is centimeter(or cm).

*1m=100cm,1kilogram=1000gram.

2. Displacement

S.I unit of displacement is metre and cgs unit of displacement is centimetre

3. speed

The SI unit of speed is m/s. ✳The CGS unit is cm/s. Unit of length in SI is meter, unit of time is second. So unit of speed is m/s (meter per second).

4. Velocity

Velocity is a unit of distance in a unit of time. From the name the unit of distance would be a centimetre and the unit of time s second. So cm/s.

If more practical they would also use m/s.

velocity is the speed of something given in a direction. the SI unit of velocity is metre per second or m/s.

hope i helped you

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