This is a solved problem I am trying to understand, I have attached the problem.
The Attempt at a Solution
In the solution of i), I don't understand why is it ok to apply the torque equation about O. The question does not state that block does not slide before toppling and ##\tau=I\alpha## can be applied only about CM or a fixed point, right?
Its been quite some time I have done these kind of problems, I am very sorry for any silly questions.
Any help is appreciated. Thanks!
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