Question

The density of a material in si units is 128 kg m 3 . In certain units in which the unit of length is 25 cm and the unit of mass is 50 g, the numerical value of density of the material

Answer 1

Answer:

Explanation:

Here's your answer in the pic

Answer 2

Dear Student,

◆ Answer -

Density = 40 units

● Explanation -

Suppose x and y be units for length and mass in new system.

x = 25 cm, 1 cm = 1/25 x

y = 50 g, 1 g = 1/50 y

Given that density of material is -

d = 128 kg/m^3

d = 128 (1 kg) /(1 m^3)

d = 128 × (1000 g)/(100 cm)^3

d = 128 × (10^3 g)/(10^6 cm^3)

d = 128/1000 (1 g)/(1 cm^3)

d = 128/1000 (1/50 y)/(1/25 x)^3

d = 128/1000 × (25^3/50) × y/x^3

d = 40 y/x^3

d = 40 units

Hence, numerical value of density of the material in new units is 40.

Thanks dear. Hope this helps you...