Equation Reference 5-49
Sphere (12, 4)
Equations:
V
4
3
---
π r
3
⋅ ⋅=
A 4 π r
2
⋅ ⋅=
I
2
5
---
m r
2
⋅ ⋅=
Id I m d
2
⋅+=
Example:
Given:
d=14_cm, m=3.75_kg, Id=486.5_lb
∗
in^2.
Solution:
r=21.4273_cm, V=41208.7268_cm^3, A=5769.5719_cm^2,
I=0.0689_kg
∗
m^2.
