A rod of mass m and length L is pivoted ...

A rod of mass `m` and length `L` is pivoted at the bottommost point `O` and can freely rotate about the point `O`. The rod is disturbed from the vertical position so that it starts rotating about `O`. When it makes an angle `theta` with the vertical

The angular acceleration of rod will be `(3)/(2L)gsintheta`

Acceleration of centre of mass of rod can be in vertical direction

Net acceleration of centre of mass of rod can't be in horizontal direction

The tangential acceleration of centre of mass of rod will be `(3)/(2)gsintheta`

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