Question

A hard wood sphere of radius 2.0 cm weighs 800g. Calculate the density of wood in kg/m3​

Answer 1

Solution:

Given- •Radius(r) = 2.0cm

•Length(1) = 75cm

•Mass(m) = 800g

To find :

•Density of wood

Solution :

Volume (V) = πr²l

=

22 × (2.0)² × 75= 6600 -g/cm³

7. 7

•Finding the density now,

Density (D) =. Mass (M).

Volume(V)

= 800. = 800 × 7 = 28 g/cm³

6600. 6600. 33

7

= 28

33 x 1000kg/m³ = 848.5kg/m³

Hence, Density of the wood is 848.5

Hence, Density of the wood is 848.5kg/m³.