Angular acceleration of dipole in uniform electric field

[cupid.callin]

1. The problem statement, and my attempt at a solution is given in pic

Please help me.

 

[G01]

At first glance, you're moment of inertia is incorrect. The rod is massless and therefore does not contribute to the moment of inertia. Your moment of inertia comes from the two massive point particles a distance, L/2, away from the center of rotation.

 

[cupid.callin]

At first glance, you're moment of inertia is incorrect. The rod is massless and therefore does not contribute to the moment of inertia. Your moment of inertia comes from the two massive point particles a distance, L/2, away from the center of rotation.

Yes, so ...

moment of inertia, I = $$\sum m_ir_i^2$$ = $$\frac{ML^2}{4} \ + \ \frac{ML^2}{4}$$

So $$I \ = \ \frac{ML^2}{2}$$

Is that wrong?

 

[cupid.callin]

someone help please

 

[rwisz]

The problem statement and solution you have provided are not enough for me to fully understand the context and provide a response. Can you please provide more information such as the specific variables, equations, and conditions given in the problem? Additionally, it would be helpful to know what you have attempted so far and what specifically you need help with. Without this information, it is difficult for me to provide a meaningful response.