Question

define momentum and density with exaple​

Answer 1

Answer:

Momentum of a body is the product of its mass and velocity. It is a vector quantity. SI unit is kg ms^-1.

Density of a substance is its mass per unit volume. It is a scalar quantity. SI unit is kg m^-3. Example:- The mass of 1cm³ of iron is 7.8g, hence the density of iron is 7.8 g cm^-3 or 7800kg m^-3.

Hope it helps ☺️