The density of a material is calculated by:

The density of the material is defined as the mass of the material to its volume.

                           ρ = M / V

Explanation:

The density of the material is a scalar quantity.

If the mass and the volume of the material is known the density of the material can be calculated using the formula,

                                     ρ = M / V

The mass of the material can be found using a physical balance.

The volume of a geometrically symmetrical material can be found using the geometrical measurement. For a brick,

                                              V = l x b x h

For non-geometrically shaped material the volume can be found from the displacement method using water.

can u provide the graph and if its not possible

then i can tell u the segment where the

average time interval starts degrading is the segment where the car is slowing down