A particle is located at each corner of an imaginary cube. Each edge of the cube is 0.905 m long, and each particle has a mass of 0.584 kg. What is the moment of inertia of these particles with respect to an axis that lies along one edge of the cube?

Respuesta :

Answer:

The moment of inertia of these particles is 3.82 kg-m².

Explanation:

Given that,

Edge of the cube = 0.905 m

Mass of particle = 0.584 kg

We need to calculate the moment of inertia of these particles

Using formula of moment of inertia

[tex]I=\sum m_{i}r_{i}^2[/tex]

[tex]I=4ml^2+2m(l\sqrt{2})^2[/tex]

[tex]I=4ml^+4ml^2[/tex]

[tex]I=8ml^2[/tex]

Put the value into the formula

[tex]I=8\times0.584\times(0.905)^2[/tex]

[tex]I=3.82\ kg m^2[/tex]

Hence, The moment of inertia of these particles is 3.82 kg-m².

Ver imagen CarliReifsteck

Answer:

moment of inertia  = 3.826 kg m^2

Explanation:

moment of inertia for given imaginary cube condition is given as

[tex]I = \sum m_i r_i^2[/tex]

  [tex]= 4\times m \times l^2 +  2\times m\times (l\sqrt{2}^2)[/tex]

[tex]4\times m \times l^2[/tex] is due to four masses at distance l

[tex]2\times m\times (l\sqrt{2}^2)[/tex] is due to two masses at distance l√2

 

     [tex]= 4ml^2 + 4ml^2[/tex]

     [tex]= 8ml^2[/tex]

    [tex]= 8\times 0.584 \times 0.905^2[/tex]

     = 3.826 kg m^2