Question

In: Advanced Math

Function of serveral variable

(a) Use the result of Exercise above to fine the moment of inertia of a uniform solid ball of mass m and radius b about a diameter of the ball.

(b) Use the result of Exercise above to find the moment of inertia of a hollow spherical shell of mass m and radius b about a diameter of the shell.

 

Solutions

Expert Solution

Solution

(a) Use the result of Exercise above to fine the moment of inertia of a uniform solid ball of mass m and radius b about a diameter of the ball.

By applying the result from exercise 20 , when 

In this case a=0, then Iz=2mb2/5

Therefore, Iz=2mb2/5

(b) Use the result of Exercise above to find the moment of inertia of a hollow spherical shell of mass m and radius b about a diameter of the shell.

By applying the result from exercise 20 , when 

Therefore, Iz=2mb2/5


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