- #1

Rikudo

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**Note**:

## V## and ##v## is respectively the velocity of

**CM**and a particle of the body relative to the fixed origin , while ##v'## is velocity of the particle relative to

**CM**

From this, we can get : $$ v = V + v'$$

In the 3rd step, It is written that ## \int r' \times V\, dm ## vanised because the position of CM in CM frame is zero.

But, isn't the position of

**CM**should be calculated relative to the origin? (Since we are calculating the angular momentum relative to the origin, not

**CM**)