Question

define density and speed.state their SI unit​

Answer 1

Explanation:

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... Density can also be expressed as kilograms per cubic metre (in MKS or SI units)

Speed is defined as the distance travelled by a body per unit time. Its unit in SI is m/s. B . Speed is defined as the displacement of a body per unit time. Its unit in SI is m/s

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Answer 2

Explanation:

Density-density of a substance is defined as mass of the substance per unit volume

SI-kg/m^3

Speed - it is a scalor quantity which tells us tha t how fast or slow the body is moving...

speed-m/s