Moment of inertia of a rotating bar

[pat666]

Homework Statement

see attachment

Homework Equations

The Attempt at a Solution

Hey can someone please tell me what I've done wrong here.
There is all so a question further down that asks for the same thing but with mass of the bar included.(M_bar)

 

[willem2]

Your answer is way off. There's no way to tell what you did wrong without seeing
your calculations.
What dit you have for the torque and for the moment of inertia?

 

[pat666]

can you tell me if this is right, a=(2*(m_1-m_2)*g)/((m_1+m_2)*l